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A new genus of Carnoyidae (Nematoda: Rhigonematida) with descriptions of Cattiena trachelomegali gen. n., sp. n. and C. trigoniuli gen. n., sp. n., parasites of Spirobolida (Diplopoda) from Vietnam
Abstract Cattiena gen. n., a new genus from the Carnoyidae, is described from the posterior gut of two genera of spirobolid diplopods from Vietnam. The new genus is characterised by: presence of eight somatic spine rows in the cervical region of both male and female, the four sublateral spine rows b...
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Published in: | Nematology : international journal of fundamental and applied nematological research 2001, Vol.3 (6), p.559-571 |
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Main Authors: | , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that cite this one |
Online Access: | Get full text |
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Summary: | Abstract
Cattiena gen. n., a new genus from the Carnoyidae, is described from the
posterior gut of two genera of spirobolid diplopods from Vietnam. The new
genus is characterised by: presence of eight somatic spine rows in the
cervical region of both male and female, the four sublateral spine rows
being better developed; presence of six cuticularised plates around the
female oral opening; extremely posterior vulva; two anteriorly directed
ovaries; isomorphic and isometric spicules; boat-shaped gubernaculum of
similar form to the spicules; gubernaculum with a dorsal hole; well
developed, smooth cephalic cap in the male and 15 copulatory papillae with
three pairs located lateral, sublateral or subdorsal. The new genus has
morphological affinities with Raonema Kloss, 1965, a poorly known genus from
India, but is easily differentiated by the extremely posterior vulva and the
presence of spine rows in the male. Two new species are described in the
genus: the type, C. trachelomegali gen. n., sp. n. from Trachelomegalus sp.
and C. trigoniuli gen. n., sp. n. from Trigoniulus sp. The two species
differ primarily in the position of the vulva (consistently more anterior in
the latter species), degree of development of the vulval flap, body length,
tail length and in the relative development of the somatic spine rows. |
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ISSN: | 1388-5545 1568-5411 1388-5545 |
DOI: | 10.1163/156854101753389176 |