Description of the male of Prosaetes rhinodontis (Wright, 1876) (Crustacea, Copepoda, Siphonostomatoida), with a proposal to synonymize Cecropidae Dana, 1849 and Amaterasidae Izawa, 2008 with Pandaridae Milne Edwards, 1840
Description of the male of Prosaetes rhinodontis (Wright, 1876) (Crustacea, Copepoda, Siphonostomatoida), with a proposal to synonymize Cecropidae Dana, 1849 and Amaterasidae Izawa, 2008 with Pandaridae Milne Edwards, 1840
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Prosaetes rhinodontis 雄性的描述（Wright，1876）（甲壳纲、桡足纲、管口纲），并提议将 Cecropidae Dana，1849 年和 Amaterasidae Izawa，2008 年与熊猫科 Milne Edwards，1840 年同义
DOI：
10.11646/zoosymposia.8.1.4
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发表时间：
2012
影响因子：
1.1
通讯作者：
K. Nagasawa
中科院分区：
文献类型：
--
作者：
D. Tang;G. Benz;K. Nagasawa
本文根据日本冲绳岛西海岸海域圈养的两条鲸鲨（Rhincodon typus Smith）的标本，首次描述了Prosaetes rhinodontis (Wright, 1876)（桡足目，管口目，蛇形目）的雄性。我们认为P. rhinodontis的形态学对模糊Cecropidae Dana（1849）和Pandaridae Milne Edwards（1840）之间的科系界限起着重要的作用，基于我们对这一问题的详细考虑，我们建议将Cecropidae视为Pandaridae的初级同义词。因此，我们将P. rhinodontis连同Cecrops Leach（1816年）、Luetkenia Claus（1864年）、Philorthagoriscus Horst（1897年）、orthagoriscola Poche（1902年）和Entepherus Bere（1936年）一起转移到熊猫科。此外，我们对amanoiwatoi Izawa， 2008年的成年雌性和桡足类I的形态特征进行了关键性评价，结果表明，由于amanoiwatoi可以归入熊猫科，因此建立Amaterasidae Izawa， 2008来容纳该物种是没有根据的。因此，我们将a . amanoitwatoi转移到熊猫科，并认为Amaterasidae是熊猫科的初级同义词。最后，我们比较了A. amanoiwatoi、Nesippus costatus ？Lewis于1964年报道的Wilson， 1924”（Pandaridae）和其他熊猫类（Pandaridae）揭示了前两个分类群惊人的相似，表明它们是同族的。基于这些结果，我们认为Lewis的标本代表了一个新的物种，我们将其命名为Amaterasia lewisi n. sp.。在熊猫科中，Amaterasia sp.似乎属于Dinemoura -类群，主要基于它们与某些Nesippus属的相似性，而Prosaetes， Cecrops, Luetkenia, Philorthagoriscus， Orthagoriscicola的代表。和Entepherus更有信心被认为是Dinemoura组的成员，因为它们共同拥有狭窄的第三个谱系体和成年雌性的第四个谱系体的背板，以及成年雄性的第三条腿末端的改良内足节。
This report provides the first description of the male of Prosaetes rhinodontis (Wright, 1876) (Copepoda, Siphonostomatoida, Cecropidae) based on specimens collected from two whale sharks ( Rhincodon typus Smith) held in sea pens off the west coast of Okinawa-jima Island, Japan. We argue that the morphology of P. rhinodontis contributes significantly to the blurring of familial limits between Cecropidae Dana, 1849 and Pandaridae Milne Edwards, 1840 and based on our detailed consideration of this matter we recommend that Cecropidae be recognized as a junior synonym of Pandaridae. Accordingly, we transfer P. rhinodontis , along with species of Cecrops Leach, 1816, Luetkenia Claus, 1864, Philorthagoriscus Horst, 1897, Orthagoriscicola Poche, 1902, and Entepherus Bere, 1936, to the Pandaridae. In addition, our critical evaluation of the morphological features of the adult female and copepodid I of Amaterasia amanoiwatoi Izawa, 2008 indicated that the establishment of Amaterasidae Izawa, 2008 to hold the species was unfounded because A. amanoiwatoi can be accommodated within Pandaridae. Thus, we transfer A. amanoitwatoi to Pandaridae and consider Amaterasidae to be a junior synonym of Pandaridae. Lastly, our comparisons of morphological and ecological attributes of A. amanoiwatoi, specimens of “ Nesippus costatus ? Wilson, 1924” (Pandaridae) reported by Lewis in 1964, and other pandarids (Pandaridae) revealed the first two taxa to be strikingly similar and suggested them to be congeners. Based on those results we propose Lewis’ specimens represent a new species, which we name Amaterasia lewisi n. sp. Within the Pandaridae, Amaterasia spp. seem to belong to the Dinemoura -group based primarily on their similarity to some Nesippus spp., while representatives of Prosaetes , Cecrops , Luetkenia , Philorthagoriscus , Orthagoriscicola , and Entepherus are more confidently considered members of the Dinemoura -group based on their shared possession of a narrow third pedigerous somite and dorsal plates on the fourth pedigerous somite in the adult female and a modified leg 3 terminal endopodal segment in the adult male.