Ontogenetic changes in cheliped and uropod morphology of the symbiotic shrimp Stenalpheops anacanthus Miya, 1997 (Decapoda: Caridea: Alpheidae): implications for the taxonomy of the genus

Ontogenetic changes in cheliped and uropod morphology of the symbiotic shrimp Stenalpheops anacanthus Miya, 1997 (Decapoda: Caridea: Alpheidae): implications for the taxonomy of the genus
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共生虾 Stenalpheops anacanthus Miya 的螯足和尾足类形态的个体发生变化,1997(十足目:Caridea:Alpheidae):对该属分类学的影响

DOI:
10.1093/jcbiol/ruab029
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发表时间:
2021
影响因子:
1.1
通讯作者:
Yumi Henmi and Gyo Itani
Yumi Henmi and Gyo Itani
中科院分区:
生物学4区
文献类型:
--
作者:
Kristian Q. Aldea;Yumi Henmi and Gyo Itani

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我们调查收集的alpheid shrimpStenalpheops,在gebiidean和axiidean虾,在东京湾,日本的洞穴共生澄清个体发育的变化,在诊断形态的chelterae和尾足类。尾足瓣仅在最大的雄性虾中发现,在雌性虾中没有。尾足瓣条数为1 ~ 5条,尾足长度与背甲长度呈正相关。此外,没有发现显示亚螯形的螯,而propodus-pollex的角度随着甲壳的发育而减小。这些特征的个体发生变化支持了以下观点:在S. anacanthus中雄性螯肢是正常的(在S. crangonus中亚螯肢),尾足瓣仅在S. anacanthus(在S. crangonus中雄性和雌性)。
We investigated collections of the alpheid shrimpStenalpheops, symbiotic in the burrows of gebiidean and axiidean shrimps, in Tokyo Bay, Japan to clarify ontogenetic changes in the diagnostic morphology of the cheliped and uropod. The uropod flaps were found only among the largest male shrimp, none among females. The number of articles of the uropod flap ranged from one to five, and uropod length was positively correlated with the length of the carapace. Furthermore, no chelae showing a subcheliped shape were found, while the angle of the propodus-pollex decreased with the development of the carapace. Ontogenetic changes in these characters support the view that the male cheliped is normal inS. anacanthus(subcheliped inS. crangonus), and the uropod flap is found only in the large males ofS. anacanthus(in both males and females inS. crangonus).
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