@article {339,
	title = {THE GENUS PARADORYLAIMUS ANDRASSY, 1969 (DORYLAIMOIDEA, NEMATODA)},
	journal = {HydrobiologiaHydrobiologia},
	volume = {133},
	number = {2},
	year = {1986},
	note = {Loof, paa coomans, a},
	month = {Feb},
	pages = {179-186},
	isbn = {0018-8158},
	author = {Loof, P. A. A. and Coomans, A.}
}
@article {346,
	title = {REVISION AND PHYLOGENETIC SYSTEMATICS OF THE DESMOSCOLECIDA (NEMATODA)},
	journal = {HydrobiologiaHydrobiologia},
	volume = {120},
	number = {3},
	year = {1985},
	note = {Decraemer, w},
	pages = {259-283},
	isbn = {0018-8158},
	author = {Decraemer, W.}
}
@article {347,
	title = {NEMATODES FROM A FRESH-WATER POOL ON A CORAL ISLAND IN THE SOLOMON-ISLANDS},
	journal = {HydrobiologiaHydrobiologia},
	volume = {123},
	number = {3},
	year = {1985},
	note = {Coomans, a vincx, m decraemer, w},
	pages = {265-281},
	isbn = {0018-8158},
	author = {Coomans, A. and Vincx, M. and Decraemer, W.}
}
@article {351,
	title = {DESMOSCOLECIDS (NEMATODA) FROM NEW-GEORGIA, SOLOMON-ISLANDS},
	journal = {HydrobiologiaHydrobiologia},
	volume = {119},
	number = {3},
	year = {1984},
	note = {Decraemer, w},
	pages = {181-191},
	isbn = {0018-8158},
	author = {Decraemer, W.}
}
@article {357,
	title = {HALALAIMUS-ALGERIENSIS N-SP (NEMATODA) FROM THE SAHARA},
	journal = {HydrobiologiaHydrobiologia},
	volume = {102},
	number = {1},
	year = {1983},
	note = {Coomans, a jacobs, lj},
	pages = {39-44},
	isbn = {0018-8158},
	author = {Coomans, A. and Jacobs, L. J.}
}
@article {358,
	title = {ONCHOLAIMUS-SAHARIENSIS SPN (NEMATODA) FROM THE ALGERIAN SAHARA},
	journal = {HydrobiologiaHydrobiologia},
	volume = {107},
	number = {3},
	year = {1983},
	note = {Coomans, a heyns, j},
	pages = {193-201},
	isbn = {0018-8158},
	author = {Coomans, A. and Heyns, J.}
}
@article {359,
	title = {SPECIES OF APHANOLAIMUS (NEMATODA, ARAEOLAIMIDA) FROM BELGIUM},
	journal = {HydrobiologiaHydrobiologia},
	volume = {101},
	number = {3},
	year = {1983},
	note = {Coomans, a dewaele, d},
	pages = {165-178},
	isbn = {0018-8158},
	author = {Coomans, A. and DeWaele, D.}
}
@article {318,
	title = {8 NEW TRICOMA SPECIES (NEMATODA, DESMOSCOLECIDAE) FROM A DEEP-SEA TRANSECT OFF CALVI (CORSICA, MEDITERRANEAN)},
	journal = {HydrobiologiaHydrobiologia},
	volume = {183},
	number = {3},
	year = {1989},
	note = {Soetaert, k decraemer, w},
	month = {Oct},
	pages = {223-247},
	isbn = {0018-8158},
	author = {Soetaert, K. and Decraemer, W.}
}
@article {263,
	title = {Aquatic nematodes from Ethiopia .7. The family Rhabdolaimidae Chitwood, 1951 sensu Lorenzen, 1981 (Chromadorida: Nematoda) with the description of Udonchus merhatibebi n sp},
	journal = {HydrobiologiaHydrobiologia},
	volume = {341},
	number = {3},
	year = {1996},
	note = {Abebe, E Coomans, A},
	month = {Dec},
	pages = {197-214},
	abstract = {Three species of Rhabdolaimus de Man, 1880 and two (of which one is new to science) of Udonchus Cobb, 1913 are described from sediment samples of two lakes, two rivers and a hot spring, Ethiopia. Udonchus merhatibebi n.sp. is characterized by a distinctly truncate lip region and small cardia surrounded by gland cells that lie on the anterior intestine at 45 degrees. The presence of twelve rugae in the cheilostome in the genus Udonchus is reported here for the first time. As a result, the family Rhabdolaimidae has been moved from suborder Leptolaimina to the superfamily Microlaimoidea in the suborder Chromadorina. The family Rhabdolaimidae is also subdivided into the subfamilies Rhabdolaiminae Chitwood, 1951 and Undonchinae n. subfam.. Scanning electronmicroscopic pictures of the five species viz. R. aquaticus de Man, 1880, R. cf, minor Cobb, 1914, R. terrestris de Man, 1880, U. merhatibebi n.sp. and U. tenuicaudatus Cobb, 1913 are also given.},
	isbn = {0018-8158},
	author = {Abebe, E. and Coomans, A.}
}
@article {264,
	title = {Aquatic nematodes from Ethiopia .5. Descriptions of Achromadora inflata n sp, Ethmolaimus zullinii n sp and Prodesmodora nurta Zullini, 1988 (Chromadorida: Nematoda)},
	journal = {HydrobiologiaHydrobiologia},
	volume = {332},
	number = {1},
	year = {1996},
	note = {Abebe, E Coomans, A},
	month = {Sep},
	pages = {27-39},
	abstract = {Three species of chromadorids two of which are new to science are described from bottom samples of Lake Tana, L. Ziway and River Abbay, Ethiopia. Achromadora inflata n. sp. and Ethmolaimus zullinii n. sp. are characterized by a uniquely inflated and offset anterior end. The latter is an exception in its genus also by its possession of a well developed dorsal tooth and inconspicuous ventrosublateral denticles. Prodesmodora nurta Zullini, 1988 is reported here for the first time out of its type locality and is described in detail. SEM pictures of Ethmolaimus zullinii n. sp. and Prodesmodora nurta, and complete setae maps of the three species are also presented.},
	isbn = {0018-8158},
	author = {Abebe, E. and Coomans, A.}
}
@article {265,
	title = {Aquatic nematodes from Ethiopia .6. The genera <i>Chronogaster</i> Cobb, 1913, Plectus Bastian, 1865 and Prismatolaimus de Man, 1880 with descriptions of C-ethiopica n sp and C-getachewi n sp (Chromadorida: Nematoda)},
	journal = {HydrobiologiaHydrobiologia},
	volume = {332},
	number = {1},
	year = {1996},
	note = {Abebe, E Coomans, A},
	month = {Sep},
	pages = {41-61},
	abstract = {Five species belonging to three genera viz. Chronogaster Cobb, 1913, Plectus Bastian, 1865 and Prismatolaimus de Man, 1880, two of which are new to science are described from a hot spring, Rivers Abbay and Gelda and Lake Tana, Ethiopia. Chronogaster ethiopica n. sp., in its possession of a ventral mucro, comes close to a number of species but differs from all hitherto known species in a combination of characteristics: its possession of crystalloid bodies, vacuolated lateral glandular bodies, horse-shoe-shaped amphids and spineless tail terminus, and its lack of longitudinal lateral lines. C. getachewi n. sp. is a unique species in the genus in having more than 100 vacuolated lateral glandular bodies and a dorsal mucro that emerges from the tail terminus about 1.5 mu m from the tail tip. Detailed descriptions of C. multispinatoides Heyns \& Coomans, 1984, Plectus (Plectus) galapagensis De Ley \& Coomans, 1994, and Prismatolaimus matoni Mulk \& Coomans, 1979 are given. The most important characteristics in the specific identifications of the genus Chronogaster are discussed. These most important characteristics of the seventeen species described after the first review of the genus by Heyns \& Coomans (1980) are reviewed in the form of tables and illustrations. Additional information on the morphology of the genus generated after the first review is particularly dealt with. In addition, SEM pictures of C. getachewi n. sp., C. multispinatoides, P. (P.) galapagensis and P. matoni are presented. Furthermore, SEM pictures of a population of C. magnifica Andrassy, 1956 from Ivory Coast are included.},
	isbn = {0018-8158},
	author = {Abebe, E. and Coomans, A.}
}
@article {266,
	title = {Aquatic nematodes from Ethiopia .1. The genus <i>Monhystera</i> Bastian, 1865 (Monhysteridae: Nematoda) with the description of four new species},
	journal = {HydrobiologiaHydrobiologia},
	volume = {324},
	number = {1},
	year = {1996},
	note = {Abebe, E Coomans, A},
	month = {May},
	pages = {1-51},
	abstract = {Freshwater bottom samples collected from Ethiopia during December 1993 and January 1994 yielded six species of the genus Monhystera Bastian, 1865 of which four are new to science. Each of the four new species can be recognized by a combination of characters; Monhystera shibrui n. sp, can be identified by the presence of a dorsal denticle, post-vulval gland cells, short vagina, and its viviparity, M. tanae n. sp. by the offset lip region, short cephalic setae, short vagina, possession of a pair of posterio-dorsolateral vaginal gland cells, more posteriorly situated vulva, lack of post-vulval gland cell, shorter vulva-anus distance compared to tail, its viviparity, short spicules, and short gubernaculum, M. nubiae n. sp. by its long vagina, presence of a pair of post-vulval gland cells and a very sharp, arrow-head shaped spinneret tip, and M. deleyi n. sp. can be recognized by the attenuated anterior end with narrow lip region, relatively wide amphids compared to corresponding body width, long vagina, presence of post-vulval gland cell, and cardia with three gland cells. Detailed descriptions of M. cf. gabaza Joubert \& Heyns, 1980 and M. somereni Allgen, 1952 are also given. While both species are reported here for the first time from Ethiopia, the former is reported for the first time out of South Africa and the need for more information on its type population is stressed. Lateral line is reported here from two species, M. deleyi n. sp. and M. cf. gabaza Joubert \& Heyns, 1980, for the first time in the genus. Scanning electromicrographs of four species, M. Shibrui n. sp., M. nubiae n. sp., M. deleyi n. sp. and M. cf. gabaza, are also given. Structures used in species identification in the genus Monhystera are reviewed. It is recommended, in future species descriptions in the genus, to use labial setae in addition to the use of cephalic setae, actual vaginal length in addition to its ratio to the corresponding body width both in females without and females with eggs but separately, a full and detailed description of the cells of the reproductive system and coelomocyte distribution, and to include an enlarged illustration of the spinneret outlet.},
	isbn = {0018-8158},
	author = {Abebe, E. and Coomans, A.}
}
@article {267,
	title = {Aquatic nematodes from Ethiopia .2. The genus Monhystrella Cobb, 1918 (Monhysteridae: Nematoda) with the description of six new species},
	journal = {HydrobiologiaHydrobiologia},
	volume = {324},
	number = {1},
	year = {1996},
	note = {Abebe, E Coomans, A},
	month = {May},
	pages = {53-77},
	abstract = {Eight species of the genus Monhystrella, six of which are new to science, are described from bottom samples collected from three lakes, two rivers and a hot spring in Ethiopia. Monhystrella hoogewijsi n. sp, is identified by a distinctive bulge on the lip region, position of the amphids, offset and well developed single pharyngeal terminal bulb, tail shorter than vulva-anus distance, tail elongate-conoid for two-thirds of its length, and by the shape and size of the spinneret outlet; M. jacobsi n. sp. by its slender body, distinctively offset and distended lip region, indistinct and weakly expanding single terminal pharyngeal bulb, and shape and size of the tail and spinneret outlet; M. arsiensis n. sp. by its single terminal pharyngeal bulb, position of amphids, shape and length of tail and spinneret outlet; M. woitorum n. sp. by its hemispherical lip region, double terminal pharyngeal bulb, shape and length of the spinneret outlet, and shape and length of tail; M. ethiopica n. sp. by its bipartite stoma, size of amphid in relation to corresponding body width, filiform tail and shape and length of spinneret outlet. M. atteae n. sp. differs from all known Monhystrella species in having an inflated cap-like lip region and fine crystalloid bodies. M. macrura (de Man, 1880) Andrassy, 1981 and M. lepidura altherri (Juget, 1969) Jacobs, 1987 are reported from Ethiopia for the first time. Crystalloid bodies in the genus Monhystrella is reported here for the first time. Also the presence of a hyaline coelomocyte next to the germinal zone of the reproductive system is reported for the first time in the genus here in all eight species. The structures used in the taxonomy of the genus are reviewed.},
	isbn = {0018-8158},
	author = {Abebe, E. and Coomans, A.}
}
@article {268,
	title = {Aquatic nematodes from Ethiopia .3. The genus Eumonhystera Andrassy, 1981 (Monhysteridae: Nematoda) with the description of E-geraerti n sp},
	journal = {HydrobiologiaHydrobiologia},
	volume = {324},
	number = {1},
	year = {1996},
	note = {Abebe, E Coomans, A},
	month = {May},
	pages = {79-97},
	abstract = {Six species of the genus Eumonhystera, one of which is new to science, are described from bottom samples of Lake Tana and two associated rivers, River Abbay and R. Gelda, Ethiopia. E. geraerti n. sp. can be identified by being the only species in the genus that combines very posteriorly positioned vulva [V\% = 68.2 +/- 0.7 (67.3-69.3)] with very anteriorly positioned amphids (Amph-ABE/LRW = 0.8). The other five species encountered, E. dispar (Bastian, 1865) Andrassy, 1981, E. filiformis (Bastian, 1865) Andrassy, 1981, E. pseudobulbosa (von Daday, 1896) Andrassy, 1981, E. mwerazii (Meyl, 1957) Andrassy, 1981, and E. vulgaris (de Man, 1880), Andrassy, 1981, are described in detail. The identities of some of the already described populations of E. dispar, E. filiformis and E. vulgaris are questioned and clearer and better ways of defining each of these three species are suggested. A peritrophic-like membrane on the outer side of the brush-border of the intestine of E. mwerazii, a species reported here for the first time out of its type locality, is reported. Also, scanning electronmicrographs of sectioned and entire specimens of E. mwerazii are presented. All species are reported from Ethiopia for the first time.},
	isbn = {0018-8158},
	author = {Abebe, E. and Coomans, A.}
}
@article {270,
	title = {LEPTEPSILONEMA SANTII SP-N FROM SPAIN AND DATA ON THE VARIABILITY OF L-FILIFORME (NEMATA, EPSILONEMATIDAE)},
	journal = {HydrobiologiaHydrobiologia},
	volume = {310},
	number = {1},
	year = {1995},
	note = {Gourbault, n decraemer, w},
	month = {Aug},
	pages = {79-86},
	abstract = {The genus Leptepsilonema is recorded for the first time from the Mediterranean: L. santii sp.n. is characterised by a slender body with a large number of annules (122-128). Cuticular ornamentation with clear ridges and a lateral field of small thorns on both sides of the anteriormost annules are also typical as well as the number and arrangement of copulatory thorns (2-3 pairs, 2 fields), the shape and length (49-58 mu m) of spicules in males. L. filiforme is recorded from New Caledonia; specimens largely resemble the original types but are larger. The variability of some morphological structures is discussed.},
	isbn = {0018-8158},
	author = {Gourbault, N. and Decraemer, W.}
}
@article {272,
	title = {ON SOME PREDATORY NEMATODES FROM THE OKAVANGO DELTA, BOTSWANA},
	journal = {HydrobiologiaHydrobiologia},
	volume = {302},
	number = {2},
	year = {1995},
	note = {Coomans, a rashid, f heyns, j},
	month = {Apr},
	pages = {119-131},
	abstract = {Five species of Mononchida and Mononchulus nodicaudatus (v. Daday, 1899) Cobb, 1918 are reported from freshwater sediments at or near Boba Island, Okavango Swamps, Botswana. Illustrations are given for Mylonchulus lacustris (Cobb N.A. in Cobb M.V., 1915) Andrassy, 1958, Iontonchus risoceiae (Carvalho, 1955) Andrassy, 1958 and Cobbonchus spec. Two species of Mononchus Bastian, 1865, M. aquaticus Coetzee, 1968 and M. truncatus Bastian, 1865 were also found. The usually rare species M. nodicaudatus was well represented and its juvenile stages are described for the first time.},
	isbn = {0018-8158},
	author = {Coomans, A. and Rashid, F. and Heyns, J.}
}
@article {279,
	title = {FRESH-WATER NEMATODES OF THE GALAPAGOS},
	journal = {HydrobiologiaHydrobiologia},
	volume = {299},
	number = {1},
	year = {1995},
	note = {Abebe, e coomans, a},
	month = {Mar},
	pages = {1-51},
	abstract = {Freshwater nematodes of the Galapagos archipelago were studied from four samples collected in 1988. Eighteen species, two of which are new to science, belonging to five orders, Enoplida, Dorylaimida, Mononchida, Monhysterida and Chromadorida, are described. Alaimus wittmeri n.sp. is characterised by having a smooth cuticle, a more posteriorly enlarged pharynx, a posteriorly situated amphidial fusus, obscure but anteriorly situated excretory pore, a mono-opisthodelphic ovary, and by the absence of sexual dimorphism in the lip region, the absence of pre-vulval uterine sac, the presence of males that have few (4-7) and weak ventromedian supplements and absence of mucro on tail tip. Monhystera floreanae n. sp. is distinguished by its females having a small body (L = 492-634 mu m) with a narrow lip region, narrow posteriorly located amphidial openings, a small value for the c{\textquoteright}-ratio (c{\textquoteright} = 6.0-7.5), weak vaginal sphincter, by the absence of post-vaginal gland cells, absence of males and absence of crystalloid bodies. The difficulty in the use of crystalloid bodies as diagnostic character in the genus Monhystera is discussed. Two forms, a big form and a small form, which are similar except in measurements are reported for Achromadora micoletzkyi. SEM photos of ruptured cuticle of A. micoletzkyi and A. semiarmata show unique intra-cuticular structures. Comparison of these structures in the two species is made. Papilliform instead of setiform outer labial sensilla are also observed in A. micoletzkyi. The presence of the male and fine crystalloid bodies in Achromadora semiarmata, dorsal body pore in Prismatolaimus dolichurus and Prismatolaimus kenyensis, forty longitudinal cuticular ridges around the mid-body of Stomachoglossa pachyderma, crystalloid bodies in Ironus dentifurcatus are reported here for the first time. SEM photos of twelve species: Monhystera floreanae n. sp., Monhystera somereni, Alaimus wittmeri n. sp., Monhystrella hastata, Paramphidelus dolichurus, Eutobrilus annetteae, Ironus dentifurcatus, Chronogaster cameroonensis, Rhabdolaimus terrestris, Stomachoglossa pachyderma, Achromadora micoletzkyi and Achromadora semiarmata, are also presented. The richest nematode fauna was found in El Junco (San Cristobal), the only permanent freshwater lake on the archipelago. The nine species recorded from the lake are probably only a fraction of the total nematode fauna. The very recent man made reservoir La Toma has a relatively high diversity, due to its vicinity to El Junco. It is argued that the freshwater nematodes from San Cristobal probably arrived there through passive transport by birds. The freshwater bodies encountered on Floreana are very different from those on San Cristobal and so is their nematode fauna. Part of the species found on these islands may have been transported by land birds, others may have invaded the freshwater from terrestrial habitats. Apart from the two new species, the other ones have a wide to very wide distribution (cosmopolitan, southern hemisphere,...), so that endemism of freshwater nematodes is very low, if it exists at all. This is due to easy dispersal capacities of nematodes on the one hand and the recent colonization (not more than 10 000, max. 40 000 years) on the other hand.},
	isbn = {0018-8158},
	author = {Abebe, E. and Coomans, A.}
}
@article {241,
	title = {Marine nematodes of the family Draconematidae (Nemata): a synthesis with phylogenetic relationships},
	journal = {HydrobiologiaHydrobiologia},
	volume = {357},
	year = {1997},
	note = {Decraemer, W Gourbault, N Backeljau, T},
	month = {Dec},
	pages = {185-202},
	abstract = {The family Draconematidae is reviewed. Diagnoses of all taxa are updated or emended, based upon an evaluation of diagnostic features. A phylogenetic analysis at the genus level based on parsimony suggested that Tenuidraconema belongs to the Draconematinae. A new genus Bathychaetosoma is erected to accomodate B. uchidai (Kito, 1983). It is characterized by a cephalic region with a smooth, non-thickened cuticle and numerous cephalic adhesion tubes located posterior to the head region and extending over more than two head diameters along the cervical region.},
	isbn = {0018-8158},
	author = {Decraemer, W. and Gourbault, N. and Backeljau, T.}
}
@article {246,
	title = {Aquatic nematodes from Ethiopia IX - One new and three known species of Dorylaimidae, Mononchus truncatus Bastian, 1865, and Diploscapter coronatus (Cobb, 1893) Cobb, 1913 (Nematoda)},
	journal = {HydrobiologiaHydrobiologia},
	volume = {353},
	year = {1997},
	note = {Abebe, E Coomans, A},
	month = {Sep},
	pages = {121-138},
	abstract = {Laimydorus ritae n. sp., Laimydorus pseudostagnalis, Dorylaimus stagnalis, Ischiodorylaimus ugandanus, Mononchus truncatus and Diploscapter coronatus are described from sediment samples of Lake Tana, Ethiopia. Laimydorus ritae n. sp. is identified by its short odontostyle (16-18 mu m), a value of 1.4 for the ratio {\textquoteright}odontostyle L/lip region width{\textquoteright}, a lip region offset by depression, an anteriorly situated longitudinal vulva, females with long tail (328-392 mu m), non-hamate terminus and presence of males. Detailed descriptions of the remaining five species with scanning electron microscopic pictures of L. pseudostagnalis are also provided. I. ugandanus is reported here for the first time out of its type locality, Uganda.},
	isbn = {0018-8158},
	author = {Abebe, E. and Coomans, A.}
}
@article {247,
	title = {Aquatic nematodes from Ethiopia .8. Enoplids, with descriptions of Brevitobrilus fesehai n sp and B-tsalolikhini n sp (Enoplida: Nematoda)},
	journal = {HydrobiologiaHydrobiologia},
	volume = {345},
	year = {1997},
	note = {Abebe, E Coomans, APart 2-3},
	month = {Feb},
	pages = {149-\&},
	abstract = {Two new and one known species of the genus Brevitobrilus, Epitobrilus setosus, Tripyla glomerans, and Ironus ignavus and I. sphincterus are described from sediments of Lakes Shala, Tana and Ziway, and River Abbay, Ethiopia. Brevitobrilus fesehai n. sp. can be recognized by a combination of characteristics: in having a narrow anterior end, short cephalic and outer labial setae, long and bow-shaped spicules, the posteriormost supplement at a distance of less than a spicule length from cloacal opening, numerous micropapillae, and terminal and subterminal setae. B. tsalolikhini n.sp. can also easily be differentiated from all known species in the genus in having a combination of characteristics: long cephalic and outer labial setae, short spicules without median stiffening piece, the posteriormost supplement situated very close to the cloacal opening, supplements with straight duct that merges with the dorsal wall of the ampulla, and elongate spermatozoa. The remaining five species are described in detail. Also scanning electron microscopic pictures of B. fesehai n.sp., B. tsalolikhini n.sp., Epitobrilus setosus and Tripyla glomerans are presented.},
	isbn = {0018-8158},
	author = {Abebe, E. and Coomans, A.}
}
@article {196,
	title = {A new species of Eumonhystera and three species of Monhystera (Monhysteridae : Nematoda) from Li River, China},
	journal = {HydrobiologiaHydrobiologia},
	volume = {468},
	number = {1-3},
	year = {2002},
	note = {Peng, YL Abebe, E Coomans, A},
	month = {Jan},
	pages = {83-93},
	abstract = {A new Eumonhystera species, E. huruii n. sp., together with Monhystera nubiae Eyualem \& Coomans, 1996, Monhystera somereni Allgen, 1952, and Monhystera wangi Wu \& Hoeppli, 1932 are described from Li river at Guiling, China. Eumonhystera huruii n. sp. is closest to E. barbata Andrassy, 1981, but differs in having shorter anterior setae, much longer reproductive system, shorter and less dorsally bent tail and differently shaped spinneret. M. nubiae and M. wangi are reported here for the first time outside their type locality, whereas M. somereni is reported from China for the first time.},
	isbn = {0018-8158},
	author = {Peng, Y. L. and Abebe, E. and Coomans, A.}
}
@article {206,
	title = {Thalassomonhystera traesti n.sp., Eumonhystera andrassyi and three Monhystrella species (Monhysteridae : Nematoda) from Li River, China},
	journal = {HydrobiologiaHydrobiologia},
	volume = {462},
	year = {2001},
	note = {Abebe, E Peng, YL Coomans, A},
	month = {Oct},
	pages = {185-197},
	abstract = {A new Thalassomonhystera species, i.e. T traesti n.sp., and a new subspecies, Monhystrella lepidura chinensis n. subsp., together with Emnonhystera andrassyi (Biro, 1969) Andrassy, 1981, Monhystrella macrura (de Man, 1880) Andrassy, 1981 and Monhystrella iranica Schiemer, 1965 are described from Li River at Guiling, China. Thalassomonhystera traesti n.sp. is characterised by a combination of the following characters: expanded lip region, large and anteriorly situated amphids, prominent inner labial sensilla, and slender spicules and tube-like gubernaculum in males. Monhystrella lepidura chinensis n. subsp. belongs to Monhystrella lepidura (Andrassy, 1963) Andrassy, 1968 but differs from the three hitherto described subspecies in its possession of a pharynx that posteriorly expands into a double bulb. Monhystrella macrura, M. iranica and Eumonhystera andrassyi are reported here for the first time from China.},
	isbn = {0018-8158},
	author = {Abebe, E. and Peng, Y. L. and Coomans, A.}
}
@article {207,
	title = {Nematode communities of Lake Tana and other inland water bodies of Ethiopia},
	journal = {HydrobiologiaHydrobiologia},
	volume = {462},
	year = {2001},
	note = {Abebe, E Mees, J Coomans, A},
	month = {Oct},
	pages = {41-73},
	abstract = {Free-living nematodes from littoral benthie sediments of four lakes, two rivers and a hot spring in Ethiopia are studied. Populations of nematodes encountered are identified to the species level. The general nematode (generic and species) composition of the lakes, rivers and hot spring are appraised by giving special emphasis to the nematodes from L. Tana, i.e. three sites where different environmental factors come into play were considered. Gelda is a site close to a river inlet (River Gelda), Gedero is a site exposed to strong wind action while Zegie is a secluded site protected by a land mass from any strong wind action. Nematode communities were identified using classification and ordination techniques. The identified communities are then characterised with respect to species composition, biomass, density, diversity, size structure, feeding type and maturity index. Also, the vertical distribution of nematodes is examined at the community and species level. An attempt has been made to associate these variations with the considered environmental factors viz. site, water depth, sediment depth, median grain size and percentage of mud in the sediment. Median grain size and percentage of mud varied over the three sites with the lowest grain size and the highest percentage of mud in Gelda. The incoming river is regarded responsible for the high mud content at this site. The composition of the nematode communities from the lakes, rivers and hot spring by and large was typically freshwater. The highest number of species (40 species) was recorded from L. Tana (a lake relatively intensively sampled) whereas the lowest number was recorded front the saline lake, Abiyata (2 species). Both species in the latter belong to the genus Monhystrella. The complete dominance of species of this genus in L. Abiyata and its presence in the saline lakes and hot spring is argued to be associated with their opportunistic nature and their high temperature dependency and their capacity to withstand high osmotic stress conditions. The role played by salinity in the distribution of nematodes in inland water bodies is considered vital. The occurrence of two species of the genus Udonchus in River Abbay where an outlet of a waste disposal scheme of a textile factory is situated, and their absence in any other site coupled with the habitual presence of one of the two species in mineral waters are used to argue that the genus may be an indicator of some kind of environmental (chemical?) stress. Five nematode communities are identified in L. Tana, viz. Gelda at 0.5 m, Gelda at 1.5 m, Zegie at 0.5 m, Zegie at 1.5 m and Gedero. The vulnerability of Gedero to strong wind action is maintained to be the main reason for the absence of a significant difference in nematode community at the two water depths at this site. The presence of few dominant species characterised four of the five communities. Factors that account for differences in species composition and abundance are discussed. Local conditions are thought to be important in the different communities in L. Tana. A strategy in niche partitioning is suggested to be the main driving force behind the composition of few most dominant species which (in L. Tana and other reviewed lakes) invariably was a combination of a deposit feeder(s) and an omnivore/predator(s) species. In general, nematode diversity in L. Tana was comparable to that found in oligotrophic and mesotrophic freshwater lakes. Nematode diversity varied over the different communities in L. Tana. The two communities in Gelda were less divers and were composed of smaller species than those communities in Zegie and Gedero, and this is explained by the muddy nature of the sediment in Gelda. Most of the difference in diversity among communities could be explained at the genus level. Density and biomass varied significantly over the five communities, density (m(-2)) was in the range 91 x 10(3)-504.7 x 10(3) and biomass was in the range 0.02-0.33 g dry wt/m(2) (0.01-0.16 gC/m(2)). Deposit feeders dominated in all communities followed by omnivore/predators. Epistrate feeders had the lowest abundance. In all sites, except Gelda at 0.5 m, a large proportion of the nematodes occurred in the uppermost sediment layer (0-1 cm). The number of species also decreased with increasing sediment depth. A relatively higher proportion of nematodes were found in the surface sediment at deeper water depth (1.5 m) than at shallower depth (0.5 in). The vertical profile of biomass followed that of density.},
	isbn = {0018-8158},
	author = {Abebe, E. and Mees, J. and Coomans, A.}
}
@article {212,
	title = {Three species of Tobrilidae (Nematoda : Enoplida) from Li River at Guiling, China},
	journal = {HydrobiologiaHydrobiologia},
	volume = {421},
	year = {2000},
	note = {Peng, YL Coomans, A},
	month = {Mar},
	pages = {77-90},
	abstract = {Eutobrilus annetteae Joubert \& Heyns, 1979 with its male reported for the first time, Semitobrilus pellucidus (Bastian, 1865) Tsalolichin, 1983, and Epitobrilus allophysis (Steiner, 1919) Tsalolichin, 1996 are described from the Li River at Guiling, China. The male of Eutobrilus annetteae is characterized by lots of crystalloids inside body, almost straight spicules about one anal body diameter long and seven equally sized supplements. Semitobrilus pellucidus from Guiling shows large variation in body width, position of amphids, form of buccal cavity, distance between denticles, direction of vagina, arrangement of oocytes, and shape of eggs. It is different from other populations in its shorter cephalic setae, less than 60\% of head width, in its shorter tail and smaller c{\textquoteright} value. In males, there are 6-9 supplements, reduced and irregulary spaced. Epitobrilus allophysis is characterized by its labial setae longer than 50\% of head width, small, posteriorly located ovoid amphid, single egg occupying whole space of uterus and blunt tail tip.},
	isbn = {0018-8158},
	author = {Peng, Y. L. and Coomans, A.}
}
@article {216,
	title = {New species of Metepsilonema (Nemata, Epsilonematidae) from the Channel and the Mediterranean Sea with a polytomous key for the identification of species of the genus},
	journal = {HydrobiologiaHydrobiologia},
	volume = {429},
	number = {1-3},
	year = {2000},
	note = {Decraemer, W Gourbault, N},
	month = {Jun},
	pages = {25-47},
	abstract = {Four new species of Metepsilonema are described from sublittoral stations from the Channel and are mainly characterized: M. volutum sp.nov. by the large body size for the genus up to 460 mu m, 118-121 well overlapping annuli and wide multispiral amphids; M. amphidoxum sp.nov. by 127-133 shortly overlapping annuli and sexual dimorphism in amphid size; M. comptum sp.nov. by 133-140 non-overlapping annuli, anteriormost annuli provided with a wide lumen and borders ornamented with ridges and M. corrugatum sp.nov. by 108-111 overlapping annuli provided with ridges). Additional information is provided for M. callosum together with a discussion on intraspecific variability. A new species of Metepsilonema spec. based on females only, is described but remain unnamed. M. comptum sp.nov. and M. corrugatum sp.nov. are also occurring in the Mediterranean Sea. A polytomous key to species level is presented.},
	isbn = {0018-8158},
	author = {Decraemer, W. and Gourbault, N.}
}
@article {182,
	title = {Epsilonematidae (Nematoda) from a cold-water coral environment in the Porcupine Seabight, with a discussion on the status of the genus Metaglochinema Gourbault \& Decraemer, 1986},
	journal = {HydrobiologiaHydrobiologia},
	volume = {505},
	number = {1-3},
	year = {2003},
	note = {Raes, M Vanreusel, A Decraemer, W},
	month = {Sep},
	pages = {49-72},
	abstract = {Thirteen species of nematodes from the family Epsilonematidae Steiner, 1927 were found to be associated with a cold-water coral reef in the Porcupine Seabight. Among them, four species were already known from various locations such as Chile and Papua New Guinea. Three new species are described here: Glochinema trispinatum sp. n. is recognized by three dorsal thorns in the pharyngeal region. This species was also recovered from the Antarctic shelf. Epsilonema multispiralum sp. n. is characterised by a multispiral amphid consisting of 3.25 coils. Bathyepsilonema lopheliae sp. n. is characterised by its body length, the position and relative width of the amphids and the nature of the cuticular ornamentation. Within the subfamily Glochinematinae Lorenzen, 1974, the number and arrangement of ambulatory setae is considered not to be of diagnostic importance. The former species Metaglochinema strigosum Gourbault \& Decraemer, 1993 is therefore classified under the genus Glochinema Lorenzen, 1974. The original genus diagnosis of Metaglochinema, now a monotypic genus, is adjusted. The geographic distribution of epsilonematid nematodes is briefly discussed.},
	isbn = {0018-8158},
	author = {Raes, M. and Vanreusel, A. and Decraemer, W.}
}
@article {150,
	title = {Nematode communities of small farmland ponds},
	journal = {HydrobiologiaHydrobiologia},
	volume = {583},
	year = {2007},
	note = {Times Cited: 0 Article English Bert, W Univ Ghent, Dept Biol, Ledeganckstr 35, B-9000 Ghent, Belgium Cited References Count: 58 152JQ SPRINGER VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS DORDRECHT},
	pages = {91-105},
	abstract = {The nematofauna of 14 farmland ponds, selected according to a gradient of surrounding agricultural land-use intensity, from five regions in North-West of Belgium were studied. The total nematode density (9-411 ind./10 cm(2) per pond), and especially the number of species (4-12 species per pond) was especially low in these ponds. In total, 17 genera of free-living benthic nematodes, belonging to 15 families, are identified. Tobrilus gracilis and Eumonhystera filiformis were the most common species and were found in 13 and 12 of the 14 sampled ponds, respectively. The genera Tobrilus and Eumonhystera jointly comprise 77\% of the total nematofauna. Consequently, the investigated water bodies were dominated by deposit feeding Monhysteridae and/or by chewing Tobrilidae. Diplogasteridae and Rhabditidae, normally related with eutrophic habitats, were almost absent. In order to explain the variation of total density, diversity, feeding-types composition and the individual density of the six most important species within ponds as well, sets of environmental variables were statistically selected. It was demonstrated that morphologically very similar species can show highly different ecological properties. The presence of a substantial mud layer and of an overall high level of eutrophication as well as the presence of possibly associated anaerobic conditions are put forward as the main factors explaining the observed low density and diversity. Total phosphate concentration and sediment characteristics seem to be the most important variables to explain the nematode community structure. However, a clear pattern of environmental variables, agricultural land use and nematode assemblages was not observed},
	keywords = {BENTHIC NEMATODES, diversity, ECOLOGICAL CHARACTERISTICS, FAMILY, FREE-LIVING NEMATODES, freshwater, LIFE-HISTORY, MATURITY INDEX, meiofauna, NATIONAL-PARK BERCHTESGADEN, Nematoda, NEMATODE, nematodes, OLIGOTROPHIC LAKE KONIGSSEE, pool, SEASONAL DISTRIBUTION, SOUTHWEST GERMANY, SUBMOUNTAIN CARBONATE STREAM, water body},
	isbn = {0018-8158},
	author = {Bert, W. and Messiaen, M. and Hendrickx, F. and Manhout, J. and De Bie, T. and Borgonie, G.}
}
@article {140,
	title = {Global diversity of nematodes (Nematoda) in freshwater},
	journal = {HydrobiologiaHydrobiologia},
	volume = {595},
	year = {2008},
	note = {Abebe, Eyualem Decraemer, Wilfrida De Ley, Paul},
	month = {Jan},
	pages = {67-78},
	abstract = {Despite free-living nematodes being present in all types of limnetic habitats including unfavorable conditions that exclude many other meiobenthic invertebrates, they received less attention than marine and terrestrial forms. Two-fifths of the nematode families, one-fifth of the nearly 1800 genera and only 7\% of the about 27,000 nominal species are recorded from freshwater habitats. The Dorylaimia are the most successful in freshwater habitats with nearly two-thirds of all known freshwater nematodes belonging to this subclass. Members of the subclass Enoplia are principally marine though include some exclusively freshwater taxa with extreme endemism. The subclass Chromadoria includes half of the freshwater nematode families and members of the Monhysterida and Plectida are among the most widely reported freshwater nematodes. Studies on freshwater nematodes show extreme regional bias; those from the southern hemisphere are extremely underrepresented, especially compared to European freshwater bodies. The majority of records are from a single biogeographic region. Discussion on nematode endemism is largely premature since apart from Lake Baikal, the nematofauna of ancient lakes as centers of speciation is limited and recent discoveries show high nematode abundance and diversity in cryptic freshwater bodies, underground calcrete formations and stromatolite pools potentially with a high number of new taxa.},
	isbn = {0018-8158},
	author = {Abebe, E. and Decraemer, W. and De Ley, P.}
}
