Cidreira Gabriel, Venekey VirÁg, DE Souza Alves Orane F, Kelmo Francisco
Laboratório de Geoecologia de Sedimentos Marinhos (GEOECO), Instituto de Biologia, Universidade Federal da Bahia. R. Barão de Jeremoabo, 668, 40170-115 Salvador, BA, Brazil..
Zootaxa. 2020 Apr 14;4763(3):zootaxa.4763.3.2. doi: 10.11646/zootaxa.4763.3.2.
A new free-living marine nematode of the family Xyalidae is described from Armação Beach, northeastern Brazil, and the genus Pseudosteineria is reviewed. Pseudosteineria longisetis sp. n. is characterized by having six groups of long subcephalic setae, amphids situated slightly anterior to the groups of subcephalic setae or at the level of the first subcephalic setae, long somatic setae located posteriorly to subcephalic setae and distributed along the body, one papiliform precloacal supplement, and gubernaculum with dorso-caudal apophysis. An emended diagnosis of the genus, an updated list of species and dichotomous identification key, and a pictorial key are given. A comparative table including the main characters of all Pseudosteineria species is also provided.
本文描述了一种采自巴西东北部阿马ção海滩的新的自由生活的海生希阿利科线虫，并对伪施泰纳线虫属进行了综述。新种长刚毛伪施泰纳线虫的特征为：有六组较长的头下刚毛，头感器位于头下刚毛组稍前方或第一组头下刚毛水平处，体刚毛长，位于头下刚毛后方并沿身体分布，有一个乳头状的泄殖腔前补充器，交合伞有背尾叶。文中给出了该属的修订诊断、物种更新列表和双歧检索表以及图解检索表。还提供了一个包括所有伪施泰纳线虫物种主要特征的比较表。
