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Studies on a Scorpaenous fish Sebastiscus marmoratus CUVIER et VALENCIENNES―IV On the Copulatory Organ of the Marine Ovoviviparous Teleost

机译:关于海洋卵母细胞硬骨鱼的共生器官的研究鲸鱼sebastiscus marmoratus CUVIER et VaLENCIENNEs-IV的研究

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摘要

1) Sebastiscus marmoratus and Sebastes inermis, the most important fishes among the marine ovoviviparous teleost, are collected monthly all the year round at Sasebo Bay. 2) There is a projection beheind the anus in the male, and the author recognized it as the copulatory organ from the histological and morphological point of view. 3) This projection is formed by juting out the end of the mesonephric duct and the urethra outward, and it is not the transformed fin such as in the other viviparous and ovoviviparous fishes. The mesonephric duct and the urethra open at the apex of this projection separately. 4) By this copulatory organ, the sex of these fishes can easily be distinguish. There is no projection in immature fish and the difference of both sexes is not recognized, so this projection is seemed as the secondary sexual character. 5) In the mature male, the copulatory organ in both species can be seen clearly in all the year, and especially it is prominent in half a year of before and after of the copulatory month. 6) There is a little difference in the histological figure of their copulatory organ in both species, but the copulatory organ has similar structure to the penis of the higher bertebrata in morphologically and histologically.
机译:1)佐世保湾一年四季都每月采集海洋鲈和最重要的鱼类,即塞巴提斯海藻和塞巴特斯无脊椎动物。 2)男性肛门有一个凸起,从组织学和形态学的角度,作者认为它是交配器官。 3)该突起是通过突出中脉管末端和尿道向外而形成的,而不是像其他胎生和卵生鱼中那样的转换鳍。中肾管和尿道分别在该突起的顶点开口。 4)通过这种交配器官,可以很容易地分辨出这些鱼的性别。在未成熟的鱼中没有投射,并且没有发现两性的差异,因此这种投射似乎是次要的性格。 5)在成年雄性中,一年四季都能清楚地看到两个物种的交配器官,尤其是在交配月份前后的半年中。 6)两种物种的交配器官的组织学图略有差异,但在形态和组织学上,交配器官的结构与高级伯特贝拉的阴茎相似。

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    水江 一弘;

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  • 年度 1959
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  • 原文格式 PDF
  • 正文语种 ja
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