The genus Bolbonema Cobb, 1920 (Nematoda: Desmodoridae): emended diagnosis, key to males, and description of three new species from the continental shelf off northeastern Brazil Author Larrazábal-Filho, Alexandre L. Author Neres, Patrícia F. Author Esteves, André M. text Zootaxa 2018 4420 4 551 570 journal article 29156 10.11646/zootaxa.4420.4.6 cafaf235-c129-4ce7-9e7a-0235d3111a50 1175-5326 1455441 6AD47FC7-2313-44C3-8CA6-3CD723ACE125 Genus Bolbonema Cobb, 1920 Diagnosis (emended from Verschelde et al. , 1998). Desmodorinae . Head capsule globular. Cuticle undifferentiated, without ornamentation. Cephalic setae maY be located at anterior, middle or posterior level of the fovea amphidialis . Buccal cavitY minute but maY have two or three teeth. One dorsal tooth and one or two subventral teeth. CrYptospiral, spiral or multispiral fovea with up to three turns; edge of posterior portion of fovea amphidialis maY eXtend to cuticle striation. Long and shorter somatic setae. Supplements maY be present. Remarks : The diagnosis proposed bY Verschelde et al. (1998) is eXpanded to include other features. The cephalic setae maY be inserted at anY level of the fovea . The buccal cavitY maY have three, two or indistinct teeth. The fovea amphidialis maY be crYptospiral, spiral or multispiral, with up to three turns; the posterior edge of the fovea maY be present in the striations; maY eXceed the limit of the cephalic capsule.