Odetenema, Bezerra & Pape & Hauquier & Vanreusel, 2021

Bezerra, Tania Nara, Pape, Ellen, Hauquier, Freija & Vanreusel, Ann, 2021, Description and distribution of Erebussau nom. nov. pro Erebus Bussau, 1993 nec Erebus Latreille, 1810 with description of a new specie, and of Odetenema gesarae gen. nov., sp. nov. (Nematoda: Desmoscolecida) from nodule-bearing abyssal sediments in the Pacific, Zootaxa 4903 (4), pp. 542-562 : 555

Genus Odetenema gen. nov.

Diagnosis: Body slender, tapering towards both extremities. Cuticle strongly annulated anteriorly and posteriorly, without desmens. Mid body cuticle almost smooth. Row of thick somatic setae on peduncles, ventrally, on the last body third, from the spicules directed to the anterior end. Cephalic region longer than wide, with cuticularised walls on lateral view. Cephalic setae on small peduncles. Smooth labial surface. Labial ring just anterior the cephalic setae peduncles. Buccal cavity small and unarmed. Amphidial fovea large and vesicular. Pharynx cylindrical. Anterior pharyngeal part surrounded by elongated glands. Pigment spots in different sizes at the anterior part of the intestine. Male reproductive system diorchic, with posterior testis reflexed. Spicules slightly arcuate, distally tapered, without capitulum. Gubernaculum without apophysis. Female reproductive system didelphic, amphidelphic with outstretched ovaries. Phasmata laterally, on the last third of the tail. Tail conical. Caudal glands opening in two separate tubular outlets.

Type species: Odetenema gesarae sp. nov.

Differential diagnosis: Comparing with the other genera of the subfamily Tricominae , the very large number of body rings with great difference between dorsal and ventral body side and absence of desmen point the new genus towards Paratricoma but without ornamentation of the body rings. The shape of the end ring with two tubular outlets is unique to the Tricominae .

Etymology: The genus is named in honour of Odete Campinas Bezerra, mother of the first author.