Dronen Norman O
Laboratory of Parasitology, Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX 77843-2258, USA.
Syst Parasitol. 2009 Nov;74(3):169-85. doi: 10.1007/s11230-009-9216-4. Epub 2009 Sep 30.
A comparison of specimens previously identified as Bashkirovitrema incrassatum (Diesing, 1850) from the African or cape clawless otter Aonyx capensis, and the speckle-throated or spotted-throated otter Hydrictis maculicollis from the Old World with specimens and descriptions of B. incrassatum from the New World showed that those from Africa (Bashkirovitrema africanum n. sp.) had a more extensive distribution of the vitelline fields than either B. canadense n. sp. from the northern river otter Lontra canadensis and the American mink Neovison vison (North America) and B. incrassatum from the Neotropical river otter Lontra longicaudis (South America). B. africanum n. sp. further differs from B. canadense n. sp. by having a smaller body, shorter forebody, smaller oral sucker, longer cirrus, shorter intertesticular space, shorter post-testicular space and longer eggs. B. canadense n. sp. can be distinguished from B. incrassatum by having a longer body, longer forebody, smaller sucker ratio, smaller testes, greater distance between the ventral sucker and the ovary, shorter cirrus-sac, longer post-testicular space and narrower eggs. B. africanum n. sp. differs from B. incrassatum by having a smaller ventral sucker, larger ovary, shorter cirrus-sac, smaller intertesticular space, larger post-testicular space and longer eggs that are not as wide. Kostadinovatrema n. g., as represented by K. novaeguiniense n. sp., can be separated from species of Bashkirovitrema Skrjabin, 1944 by having a wider body width to length profile, a head collar that is narrower than the forebody and armed with 33 rather than 27 collar spines, an ovary that is further removed anteriorly from the testes, and a dorso-ventrally flattened hindbody that is nearly as broad as the forebody. The new genus differs from Hypoderaeum Dietz, 1909 and Moliniella Hübner, 1939 by having 33 head collar spines.
将先前鉴定为厚壁巴什基罗吸虫（Diesing，1850年）的来自非洲无爪水獭或海角无爪水獭（Aonyx capensis）以及旧大陆的斑点喉水獭（Hydrictis maculicollis）的标本，与来自新世界的厚壁巴什基罗吸虫的标本和描述进行比较后发现，来自非洲的吸虫（非洲巴什基罗吸虫，新物种）的卵黄腺分布比来自北美洲北美水獭（Lontra canadensis）和美洲水貂（Neovison vison）的加拿大巴什基罗吸虫（新物种）以及来自南美洲新热带水獭（Lontra longicaudis）的厚壁巴什基罗吸虫更为广泛。非洲巴什基罗吸虫（新物种）与加拿大巴什基罗吸虫（新物种）的进一步区别在于，其身体较小、前体较短、口吸盘较小、阴茎较长、睾丸间距离较短、睾丸后距离较短且虫卵较长。加拿大巴什基罗吸虫（新物种）与厚壁巴什基罗吸虫的区别在于，其身体较长、前体较长、吸盘比例较小、睾丸较小、腹吸盘与卵巢之间的距离较大、阴茎囊较短、睾丸后距离较长且虫卵较窄。非洲巴什基罗吸虫（新物种）与厚壁巴什基罗吸虫的区别在于，其腹吸盘较小、卵巢较大、阴茎囊较短、睾丸间距离较小、睾丸后距离较大且虫卵较长但宽度较小。以新几内亚科斯塔迪诺吸虫（新物种）为代表的科斯塔迪诺吸虫属（新属），与1944年的巴什基罗吸虫属（Skrjabin）的物种的区别在于，其身体宽度与长度的比例更宽，头部领圈比前体窄且有33根而非27根领圈棘，卵巢在睾丸前方的位置更远，以及后体背腹扁平且几乎与前体一样宽。该新属与1909年的Hypoderaeum属和1939年的Moliniella属的区别在于有33根头部领圈棘。
