ABSTRACT

Twenty-eight Australian fish species were infected with 18 taxa of Arhythmacanthidae; 11 characterised to species, 4 to genus and 3 to family. Diagnoses are provided for the genera Heterosentis, Hypoechinorhynchus, Paracanthocephaloides and Yamagutirhynchus n. gen. Heterosentis has four Australian species: H. hirsutus Pichelin & Cribb, 1999, H. paraplagusarium (Nickol, 1972), H. plotosi Yamaguti, 1935, H. lisitsynae n. sp., defined by a proboscis armature of 14–16 rows of 8–9 hooks, 4 large, 4–5 spiniform, and three indeterminate species, two from Western Australia, one from Queensland. Hypoechinorhynchus is represented by Hy. robustus Pichelin, 1999 and Hy. alaeopis Yamaguti, 1939. Paracanthocephaloides is represented in Australia by one indeterminate species and three new species: P. bartonae n. sp. has an armature of 14–16 rows of 3 large, 7 spiniform hooks; P. hustoni n. sp. 12 rows of 5–6 hooks, 2 large, 3–4 spiniform; P. shamsiae n. sp. 12 rows of 5–6 hooks, 2 large, 3–4 spiniform. Paracanthocephaloides cabelleroi (Guptar & Fatma, 1983) is returned to the genus Heterosentis. Paracanthocephaloides golvani Chandra, Hanumantha-Rao & Shyamasundari, 1984 is moved to the genus Gorgorhynchoides as G. golvani n. comb. Yamagutirhynchus n. gen. has a cylindrical proboscis with an expanded middle region. Yamagutirhynchus lymberyi n. sp. and Y. elliotae n. sp. both have proboscis armatures of 10 rows of 4–5 hooks; for Y. lymberyi the largest hooks are 42.5 μm long; for Y. elliotae, 51 μm.

摘要

澳大利亚 28 种鱼类感染了 18 个节鱼科类群；11 个特征为种，4 个为属，3 个为科。提供了Heterosentis属、Hypoechinorhynchus、Paracanthocephaloides和Yamagutirhynchus n 属的诊断。将军 Heterosentis有四个澳大利亚物种：H. hirsutus Pichelin & Cribb，1999，H. paraplagusarium（Nickol，1972），H. plotosi Yamaguti，1935，H. lisitsynae n。sp.，由 14-16 排 8-9 个钩、4 个大钩、4-5 个刺状钩和三个不确定物种组成的长鼻骨架定义，其中两个来自西澳大利亚，一个来自昆士兰。Hypoechinorhynchus的代表是Hy。robustus Pichelin, 1999 和Hy。alaeopis Yamaguti, 1939. Paracanthocephaloides在澳大利亚有一个不确定的物种和三个新物种：P. bartonae n。sp。有一个 14-16 排的骨架，每排 3 个大的 7 个刺状钩；P. hustoni n. sp。12 排 5-6 个钩，2 个大，3-4 个刺状；P. shamsiae n. sp。12 排 5-6 个钩，2 个大，3-4 个刺状。Paracanthocephaloides cabelleroi (Guptar & Fatma, 1983) 归还到Heterosentis 属。Paracanthocephaloides golvani Chandra, Hanumantha-Rao & Shyamasundari, 1984 移至该属Gorgorhynchoides为G. golvani n. 梳子。Yamagutirhynchus n. 将军 有一个圆柱形的长鼻，中间区域扩大。Yamagutirhynchus lymberyi n. sp。和Y. elliotae n。sp。两者都有 10 排 4-5 个钩子的长鼻支架；对于Y. lymberyi，最大的钩子长 42.5 微米；对于Y. elliotae，51 μm。