New genus and two new species of the family Ethmolaimidae (Nematoda: Chromadorida), found in two different cold-seep environments Author Nara, Bezerra Tania Author Ellen, Pape Author Freija, Hauquier Author Ann, Vanreusel Author Jeroen, Ingels text Zootaxa 2013 3692 1 7 27 journal article 10.11646/zootaxa.3692.1.4 4c6cd264-3a9f-47ad-8d5d-ed322f129517 1175-5326 284259 F9EC43F2-F82E-4E8C-A735-ECA4DFF7CA00 Subfamily Neotonchinae Wieser & Hopper, 1966 Diagnosis. Ethmolaimidae (originally Cyatholaimidae ): buccal cavity elongate, depth greater than width; armed with very small to medium or large dorsal tooth located midway in the buccal cavity and with or without small subventral teeth. Cephalic sense organs 6+6+4. Pharynx with well-developed terminal bulb. Spicula of highly characteristic shape, proximal two-thirds fairly straight and nearly uniform thickness, distal third narrowed, cylindroid and with a slight S-shaped curvature. Precloacal supplements large, well-developed, cup-shaped. Tail plump, conoid, with bluntly rounded terminus. Marine. (Platt, 1982; Lorenzen 1994) ( Type genus: Neotonchus Cobb, 1933 ) Genera belonging to Neotonchinae : Comesa Gerlach, 1956 , Dystomanema gen. nov. , Filitonchoides Jensen, 1985 , Filitonchus Platt, 1982 , Gomphionchus Platt, 1982 , Gomphionema Wieser & Hopper, 1966 , Nannolaimus Cobb, 1920 , and Neothonchus Cobb, 1933. ( Fig 3 )