Martelli Antonela, Russo Virginia Lo, Villares Gabriela, Ward Catalina T Pastor DE
Laboratorio de Peces y Mariscos de interés comercial (LAPEMAR)-Centro para el Estudio de Sistemas Marinos (CESIMAR-CONICET), Blvd. Alte. Brown 2915, U9120ACF Puerto Madryn, Chubut, Argentina.
Zootaxa. 2017 Apr 6;4250(4):347-357. doi: 10.11646/zootaxa.4250.4.5.
Two new free-living marine nematodes of the family Oxystominidae are described from San Antonio Bay (Río Negro) and San José Gulf (Chubut). Litinium australis sp. n., is characterized by having a rounded tail, by the first and second crown of cephalic setae with different lengths, gubernaculum with apophysis and by the presence of at least four precloacal papillae; Thalassoalaimus nestori sp. n., is characterized by having a conical tail, cephalic setae equal in length, gubernaculum with rounded and dorso-caudally directed apophysis and two precloacal papillae. An emended diagnosis of the genus Thalassoalaimus and a key to species are given.
本文描述了采自圣安东尼奥湾（里奥内格罗省）和圣何塞湾（丘布特省）的两种新的自由生活海洋线虫，隶属于尖吻线虫科。南方利廷线虫，新种，其特征为尾部圆形，头刚毛的第一和第二冠长度不同，交接刺具突出物，并且至少有四个泄殖腔前乳突；内斯托尔海栖线虫，新种，其特征为尾部圆锥形，头刚毛长度相等，交接刺具圆形且背向尾端的突出物以及两个泄殖腔前乳突。文中给出了海栖线虫属的修订诊断及种的检索表。
