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首页> 外文期刊>Journal of Parasitology >DESCRIPTION OF A NEW DIGENEAN (ZOOGONIDAE) GENUS AND SPECIES FROM SUB-ANTARCTIC FISH PATAGONOTOTHEN TESSELLATA
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DESCRIPTION OF A NEW DIGENEAN (ZOOGONIDAE) GENUS AND SPECIES FROM SUB-ANTARCTIC FISH PATAGONOTOTHEN TESSELLATA

机译:亚南极鱼类F蝶TESSELLATA的一种新的属(ZOOGONIDAE)属和种的描述

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摘要

Whitegonimus ozoufae n. gen., n. sp. (Digenea: Zoogonidae) is reported from the stomach of Patagonotothen tessellata in the harbor of Ushuaia in the Beagle Channel (Tierra del Fuego, Argentina) at a depth of 7-9 m. The female genital system structure indicates the new taxon belongs in the Subfamily Lepidophyllinae (Zoogonidae). None of the genera previously described is similar to the new genus. The most important taxonomic features are the spined tegument, lack of enlarged circumoral spines, gonads arranged in tandem, long caeca, vitelline follicles extending from the level of the ventral sucker to the posterior end of anterior testis, and a Y-shaped excretory vesicle. Only 3 genera, Overstreetia, Anarhichotrema, and Pseudopalaeorchis, have testes arranged in tandem, but they differ from the new genus in possessing enlarged circumoral spines, oral sucker size, esophagus length, length of caeca, vitellaria restricted to hindbody, the form of the ovary, and an I-shaped excretory vesicle.
机译:白gon gen。,n。 sp。 (Digenea:Zoogonidae)是在比格海峡(阿根廷火地岛)的乌斯怀亚港口的Patagonotothen tessellata的胃中报告的,深度为7-9 m。女性生殖系统结构表明,新的分类单元属于鳞翅目亚科(Zoogonidae)。先前描述的属均未与新属相似。最重要的分类学特征是:脊柱外翻,缺乏扩大的周围棘,性腺串联排列,长盲肠,卵黄囊从腹腔吸盘一直延伸到前睾丸的后部,以及Y型排泄小泡。睾丸串联排列的只有3个属,即超大街,肛门畸形和假古猿,但它们与新属的区别在于具有增大的周围棘,口腔吸盘大小,食道长度,盲肠长度,vi骨仅限于后体,子房和一个I形的排泄小泡。

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