Bullard Stephen A, Dippenaar Susan M
Gulf Coast Research Laboratory, Department of Coastal Sciences, The University of Southern Mississippi, P.O. Box 7000, Ocean Springs, Mississippi 39566, USA.
J Parasitol. 2003 Jun;89(3):595-601. doi: 10.1645/0022-3395(2003)089[0595:BRNGAN]2.0.CO;2.
Branchotenthes robinoverstreeti n. gen. and n. ap. (Monogenea: Hexabothriidae) infects the gill filaments of the bowmouth guitarfish, Rhina ancylostoma Bloch and Schneider, 1801 (Rhynchobatidae) in the southwest Indian Ocean off Trafalgar, South Africa. The new species is most easily distinguished from other hexabothriids by the combination of having a symmetrical haptor, C-shaped haptoral sucker sclerites that are approximately equal in size, haptoral suckers that are equal in size and arranged in 3 tandem pairs that each straddle the longitudinal axis of the haptor, glandular-walled vasa efferentia that are dilated in the distal portion and unite medially before connecting to the vas deferens, a thick-walled male copulatory organ with an oblong proximal portion and an unarmed and finger-like distal portion, parallel vaginae that each possess a thin-walled and sperm-filled proximal portion that is strongly sinuous as well as a thick-walled and musculoglandular distal portion that extends sinuously anteriad, and an egg with a filament at each end. This is the first report of a hexabothriid from asharkfin guitarfish (Rhynchobatidae). A key to the genera of Hexabothriidae is provided.
罗宾斯街分支吸虫（Branchotenthes robinoverstreeti），新属新种（单殖吸虫纲：六铗科），寄生于南非特拉法尔加附近印度洋西南部的弯口鳐（Rhina ancylostoma Bloch and Schneider, 1801，鳐科）的鳃丝上。该新物种与其他六铗科物种最容易区分的特征组合包括：具对称的抱器；C形的抱器吸盘硬片，大小近似相等；抱器吸盘大小相等，排成3对，每对横跨抱器的纵轴；腺壁输出管在远端扩张，在连接输精管前于中部合并；厚壁雄性交配器官，近端呈长方形，远端无武装且呈指状；平行的阴道，每个阴道都有一个薄壁且充满精子的近端，强烈弯曲，还有一个厚壁且肌腺质的远端，向前弯曲延伸；以及两端各有一根细丝的卵。这是关于六铗科吸虫在鳐科鱼类上的首次报道。提供了六铗科各属的检索表。
