NEMATODES

taxonomy, morphology and phylogeny

New species of Leptepsilonema and Polkepsilonema (Nemata, Epsilonematidae)

Publication Type:Journal Article
Year of Publication:2000
Authors:W. Decraemer, Gourbault N.
Journal:Cahiers de Biologie MarineCahiers de Biologie Marine
Volume:41
Pagination:25-46
ISBN Number:0007-9723
Accession Number:WOS:000086297100003
Abstract:

Three new species of the genus Leptepsilonema and one new species of Polkepsilonema are described. Leptepsilonema antonioi sp. nov. is mainly characterized by 111-115 overlapping annules with a large vacuolar ornamentation, a large body size and in male, by number and arrangement of copulatory thorns; L. dauvini sp. nov. has 149-154 annules, ornamented with numerous fine vacuoles and fine outer ridges, and males possess a field of fine copulatory thorns at level of posterior ambulatory region and five minute thorns precloacally; L.. horridum sp. nov, is characterized by 130-131 annules, ornamented with large vacuoles and spines, and males with copulatory thorns arranged in four subventral rows, the inner rows with five or six well developed thorns followed at some distance by one to two thorns, and long spicules (67-72 mu m). Polkepsilonema guirali sp. nov. is characterized by the number and location of copulatory thorns, the number of subcephalic setae, and the feature of the dorsal spines. A polytomous key to species level is presented for the genus Leptepsilonema.

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith