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首页> 外文期刊>Journal of Parasitology >Two New Species of Cryptocephalum n. gen. (Monogenoidea: Dactylogyridae) from the Cephalic Lateral Line of Percichthys trucha (Perciformes: Percichthyidae) in Patagonia, Argentina
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Two New Species of Cryptocephalum n. gen. (Monogenoidea: Dactylogyridae) from the Cephalic Lateral Line of Percichthys trucha (Perciformes: Percichthyidae) in Patagonia, Argentina

机译：隐头cephal的两个新种。 gen。阿根廷巴塔哥尼亚Percichthys trucha（Perciformes：Percichthyidae）的头侧外侧线中的（Monogenoidea：Dactylogyridae）

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摘要

Two new species of Monogenoidea were found parasitizing the cephalic lateral line canals of Percichthys trucha (Valenciennes) (Perciformes: Percichthyidae). These species are described as members of a newly proposed genus of Dactylogyridae. Cryptocephalum n. gen. is characterized by the site of infection and the combination of the several features: ventral and dorsal anchor/bar complexes, anchors with strongly elongated shaft and recurved point, shaft and point of dorsal anchors protruding laterally from haptor, hooks with 2 subunits and with pair 5 smaller than the others; gonads overlapping; coiled male copulatory organ with counterclockwise rings, accessory piece formed by 2 distinct parts, and a tubular, sclerotized ventral vagina. Cryptocephalum petreum n. sp. is characterized by having both anchor pairs protruding laterally from haptor, male copulatory organ with a coil of 2-1/2 rings, accessory piece tweezers-shaped, and sclerotized vaginal vestibule. Cryptocephalum spiralis n. sp. has ventral anchors protruding ventrally and dorsal ones protruding laterally, male copulatory organ with a coil of 1-1/2 rings, the antero-dorsal part of the accessory piece saddle-shaped, vaginal vestibule not present, and coiled vagina. This is the first record of Dactylogyridae species parasitizing the cephalic lateral line of fishes.
机译：发现了两种新的Monogenoidea寄生于Percichthys trucha（Valenciennes）（Perciformes：Percichthyidae）的头侧线管中。这些物种被描述为新发现的拟杆菌科的一员。隐头虫gen。其特点是感染部位和以下几个特征的组合：腹侧和背侧锚/棒复合体，具有强烈拉长的轴和弯曲点的锚，背侧锚的轴和点从上颌骨侧向突出，具有2个亚基和一对的钩比其他小5个;性腺重叠;盘绕的雄性交配器官，具逆时针环，附件由2个不同的部分形成，并呈管状，硬化性腹侧阴道。头孢子虫sp。其特征是两个锚对均从上肢侧向突出，雄性交配器官带有2-1 / 2圈的线圈，附件呈镊子状，并有硬化的阴道前庭。螺旋头虫sp。腹侧锚固于腹侧，背侧锚固于侧面，雄性交配器官，具有1-1 / 2圈的线圈，附件块的前-背部分呈马鞍形，不存在阴道前庭，并盘绕阴道。这是寄生于鱼类的头侧线的Dactylogyridae物种的第一个记录。

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