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首页> 外文期刊>Journal of Parasitology >GAHARITREMA DRONENI N. GEN., N. SP. (DIGENEA: ZOOGONIDAE) FROM THE PUDGY CUSKEEL, SPECTRUNCULUS GRANDIS (OPHIDIIFORMES: OPHIDIIDAE), FROM DEEP WATERS OFF OREGON, WITH UPDATED KEYS TO ZOOGONID SUBFAMILIES AND GENERA
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GAHARITREMA DRONENI N. GEN., N. SP. (DIGENEA: ZOOGONIDAE) FROM THE PUDGY CUSKEEL, SPECTRUNCULUS GRANDIS (OPHIDIIFORMES: OPHIDIIDAE), FROM DEEP WATERS OFF OREGON, WITH UPDATED KEYS TO ZOOGONID SUBFAMILIES AND GENERA

机译：Gaharitrema Droneni N.Gen。，N. SP。 （Digenea：Zoogonidae）来自Pudgy Cuskeel，Spectrunculus Grandis（Ophidiormes：Ophidiidae），从俄勒冈州的深水，Zoogonid Subfamilies和Genera的更新键

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摘要

Gaharitrema droneni n. gen., n. sp. (Digenea: Zoogonidae: Lepidophyllinae) is described from the intestine of the pudgy cuskeel, Spectrunculus grandis (Gunther, 1877) (Ophidiiformes: Ophidiidae), collected at 2,800 m depth from the northeastern Pacific Ocean off Oregon. The new genus is distinguished from Brachyenteron Manter, 1934 and Steganoderma Stafford, 1904, the 2 closest lepidophylline genera, and from 4 other zoogonid genera erected since 2007, the last major revision of the family, by a combination of diagnostic features including a pyriform or spindle-shaped body, smooth testes and ovary, narrow ceca that reach with the vitellarium into the hindbody, an unspecialized ventral sucker, non-filamented eggs, a claviform cirrus pouch, and an unpocketed ejaculatory duct and metraterm, and the new genus lacks circumoral spines. We present updated keys to the 3 subfamilies of the Zoogonidae Odhner, 1902, as well as to the genera of the Cephaloporinae Yamaguti, 1934 and the Lepidophyllinae Stossich, 1903. A listing of the parasites known from S. grandis also is presented. This study documents the third family of digeneans (Zoogonidae) known to parasitize S. grandis, and it is a new host record (i.e., the first zoogonid reported from this host species). We discuss the relatively impressive presence of the Zoogonidae and their hosts within the deep sea. Specifically, of the 35 genera we recognize within this digenean family, 14 (40%) have deep-sea representatives. At least 37 species within 27 genera and 19 families within 11 orders of deep-sea fish are known to harbor zoogonids. Furthermore, of the 37 known deep-sea fish species parasitized by zoogonids, only 5 (13.5%) harbor 2 or more zoogonid species; the remaining 32 (86.5%) harbor only 1 parasite species each, indicating strong host specificity. Finally, the dietary ecology of S. grandis is presented, allowing us to speculate that Gaharitrema droneni may be utilizing gastropods and polychaetes as well as S. grandis to complete its life cycle in the deep sea.
机译：Gaharitrema droneni n.gen.，n.sp.（Digenea:动物原科：鳞翅目）是从矮胖的巨斑蛇（Spectraculus grandis，Gunther，1877）（蛇形目：蛇形科）的肠道中描述的，采集于俄勒冈州东北太平洋2800米深处。这一新属与最近的两个鳞翅目属（Brachyenteron Manter，1934年）和Steganodema Stafford，1904年）以及自2007年（该科最后一次重大修订）以来建立的其他4个动物性属（zoogonid genoid generas）相区别，其诊断特征包括梨形或纺锤形体、平滑的睾丸和卵巢、狭窄的盲肠，盲肠与卵黄进入后体，一个非特殊的腹吸盘，无丝状卵，一个棒状卷云囊，一个未封闭的射精管和metraterm，这个新属没有环口棘。我们介绍了1902年奥德纳动物原科的3个亚科，以及1934年山口头足类和1903年斯多西鳞翅目的属的最新资料。本文还列出了已知的巨链球菌寄生虫。这项研究记录了已知寄生大熊猫的第三个二殖吸虫科，它是一个新的寄主记录（即，从这个寄主物种中报告的第一个动殖吸虫）。我们讨论了深海中相对令人印象深刻的动物科及其宿主。具体来说，在我们所认识的35个属中，14个（40%）具有深海代表性。已知11目19科27属至少37种深海鱼类含有动物原细胞。此外，在已知的37种被动物源性寄生虫寄生的深海鱼类中，只有5种（13.5%）含有2种或更多动物源性物种；其余32种（86.5%）每种仅携带1种寄生虫，表明宿主特异性强。最后，本文还介绍了巨鳍金枪鱼的饮食生态，使我们可以推测，巨鳍金枪鱼可能利用腹足类和多毛类以及巨鳍金枪鱼在深海中完成其生命周期。

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