Dippenaar Susan M
Department of Biodiversity, University of Limpopo, Private Bag X1106, Sovenga, 0727, South Africa.
Syst Parasitol. 2017 Jan;94(1):91-96. doi: 10.1007/s11230-016-9679-z. Epub 2017 Jan 6.
Trebius Krøyer, 1838 currently consists of 15 accepted species all infecting elasmobranchs. Apart from two species, i.e. T. caudatus Krøyer, 1838 and T. latifurcatus Wilson, 1921, that have been reported from ten and eight host species, respectively, the other 13 species have each been reported from only one or two host species. Trebius benzi n. sp., collected from Squalus acutipinnis Regan, is described and illustrated after examination through stereo- and compound microscopes. This species can be distinguished from the other known species by a combination of characters including an abdomen that is shorter than the genital complex, a maxillule with an endite that consists of a single-tined dentiform process, sternal furca tines that are blunt and as long as the base, and the innermost spine of the last exopodal segment of leg 1 the shortest.
特雷比乌斯属（Trebius）由克罗耶（Krøyer）于1838年建立，目前包含15个已被认可的物种，均寄生于板鳃亚纲鱼类。除了分别在10种和8种宿主上被报道过的尾状特雷比乌斯（Trebius caudatus Krøyer，1838）和宽叉特雷比乌斯（Trebius latifurcatus Wilson，1921）这两个物种外，其他13个物种每个仅在一两种宿主上被报道过。从尖鳍角鲨（Squalus acutipinnis Regan）采集到的新物种本氏特雷比乌斯（Trebius benzi n. sp.），经体视显微镜和复式显微镜检查后进行了描述和绘图。该物种可通过一系列特征与其他已知物种区分开来，这些特征包括腹部短于生殖复合体、小颚内叶由单齿状齿形突起组成、胸骨叉齿钝且与基部等长，以及第1对步足末节外肢最内侧的刺最短。
