TY  - JOUR
AB  - The taxonomy of the genus Aponema Jensen, 1978 is discussed. An emended
   diagnosis and identification keys at species level are provided. Two
   Aponema species - A. decramerae and A. mnazi are transferred from the
   genus Aponema to Microlaimus because of the presence of two testes. One
   known Microlaimus species, Microlaimus nanus Blome, 1982, is
   transferred from the genus Microlaimus to Aponema because of the
   presence of a single testis in males. Three new Aponema species are
   described.
   A. bathyalis sp. n. is characterized by a small body, smooth or
   slightly transversely striated cuticle, amphids with rod-like
   protruding corpus gelatum, almost round pharyngeal bulb and presence of
   three papilliform precloacal supplements in males. A. bathyalis is
   similar to A. nympha and A. nanum but differs from the former by the
   position of amphidial fovea (at about 1.5 head diameters from anterior
   end vs less than 0.7 head diameters from anterior in A. nympha) and
   from the latter by the presence of a gubernaculum, a protruding corpus
   gelatum from the amphidial fovea and by the shorter tail (c = 8.2-11.3
   vs c = 5.8-7.8).
   A. minutissima sp. n. is characterized by a very small slender body,
   transversely striated cuticle, roundish amphidial fovea, spherical
   pharyngeal bulb, presence of short somatic setae, large spermatozoa,
   and a weakly developed copulatory apparatus without gubernaculum. It
   differs from the other Aponema species by the small body size
   (0.20-0.43 mm). It mostly resembles A. bathyalis sp. n. but differs by
   smaller size, slightly striated cuticle and absence of a gubernaculum.
   A. westindicum sp. n. is characterized by a larger body, annulated
   cuticle, discernible dorsal tooth, pyriform pharyngeal bulb and conical
   tail. It differs from A. nanum (Blome, 1982) by longer body size and
   structure of buccal cavity.
   All Aponema species described in this paper are characterized by
   monorchic males without gubernacular apophyses, females with two
   outstretched ovaries and a conical tail.
   

A1  - Kovalyev, S. V.
A1  - Miljutina, M. A.
DO  - 10.11646/zootaxa.2077.1.3
JO  - Zootaxa
N1  - NeMys doc_id: 17885<br/>
SP  - 56
EP  - 68
C1  - 2077: 56–68
TI  - A review of the genus Aponema Jensen, 1978 (Nematoda: Microlaimidae)   with description of three new species
UR  - https://nemys.ugent.be/aphia.php?p=sourcedetails&id=171701
VL  - 2077
PY  - 2009
Y2  - 2026-09-10
ER  -