Spirinia Gerlach, 1963, Gerlach, 1963

Silva, Maria Cristina Da, Castro, Francisco José Victor De, Cavalcanti, Mariana Da Fonseca & Fonsêca-Genevois, Verônica Da, 2009, Spirinia lara sp. n. and Spirinia sophia sp. n. (Nematoda, Desmodoridae) from the Brazilian continental margin (Campos Basin, Rio de Janeiro), Zootaxa 2081, pp. 31-45: 33-34

publication ID

http://doi.org/ 10.5281/zenodo.187363

persistent identifier

http://treatment.plazi.org/id/03FB87E1-FFE8-FFA8-FF4E-F924E4A5FD21

treatment provided by

Plazi

scientific name

Spirinia Gerlach, 1963
status

 

Genus Spirinia Gerlach, 1963  

Spirinia   belongs to the subfamily Spiriniinae   , which includes genera such as: Alaimonema   , Chromaspirina   , Metachromadora   , Onyx, Papillonema, Parallelocoilas   , Perspiria   , Polysigma Pseudometachromadora   and Sigmophoranema   . The subfamily is characterised by a head not offset as a distinct cephalic capsule, cuticle only finely striated and amphids surrounded by cuticular striations.

The genus Spirinia   is distinguished from other members of the subfamily Spiriniinae   in having a single dorsal tooth, minute teeth or no teeth, and precloacal supplements absent (rarely present). The differentiation of species within Spirinia   is mainly by size and position of amphidial fovea, number and arrangement of cephalic setae, length and distribution of somatic setae, tail shape, and shape of spicules in male ( Platt & Warwick, 1988).

Perspiria Vincx & Gourbault 1989   is a genus very close to Spirinia   . Perspiria   differs from Spirinia   in having cuticular striations partly surrounding the amphideal fovea; pyriform terminal pharyngeal bulb mostly present; preanal supplements pore-like or tubiform and a filiform tail prominently striated.

Emended Genus Diagnosis. Cuticle with fine (faint) transverse striae, somatic setae arranged in eight longitudinal rows, may be restricted to neck region. Numerous epidermal cells may be associated with somatic papillae. Cephalic setae at level of amphids. Amphids surrounded by transverse cuticular striae, with outline circular, a simple spiral or loop-shaped. Buccal cavity very small and narrow, may be provided with a dorsal tooth or minute ventrosublateral teeth. Pharynx with short, round terminal bulb. Ventral gland present or absent. Spicules with prominent capitulum and velum. Precloacal supplements present or absent. Tail conical or conico-cylindrical.

Kingdom

Animalia

Phylum

Nematoda

Class

Adenophorea

Order

Desmodorida

Family

Desmodoridae

Loc

Spirinia Gerlach, 1963

Silva, Maria Cristina Da, Castro, Francisco José Victor De, Cavalcanti, Mariana Da Fonseca & Fonsêca-Genevois, Verônica Da 2009
2009
Loc

Perspiria

Vincx & Gourbault 1989
1989