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李帆, 郦珊, 陈家宽. 2018: 中国钱塘江淡水虾虎鱼一新种——无斑吻虾虎鱼 Rhinogobius immaculatus (真骨下纲:虾虎鱼科). 动物学研究, 39(6): 396-405. DOI: 10.24272/j.issn.2095-8137.2018.065
引用本文: 李帆, 郦珊, 陈家宽. 2018: 中国钱塘江淡水虾虎鱼一新种——无斑吻虾虎鱼 Rhinogobius immaculatus (真骨下纲:虾虎鱼科). 动物学研究, 39(6): 396-405. DOI: 10.24272/j.issn.2095-8137.2018.065
Fan Li, Shan Li, Jia-Kuan Chen. 2018: Rhinogobius immaculatus, a new species of freshwater goby (Teleostei: Gobiidae) from the Qiantang River, China. Zoological Research, 39(6): 396-405. DOI: 10.24272/j.issn.2095-8137.2018.065
Citation: Fan Li, Shan Li, Jia-Kuan Chen. 2018: Rhinogobius immaculatus, a new species of freshwater goby (Teleostei: Gobiidae) from the Qiantang River, China. Zoological Research, 39(6): 396-405. DOI: 10.24272/j.issn.2095-8137.2018.065

中国钱塘江淡水虾虎鱼一新种——无斑吻虾虎鱼 Rhinogobius immaculatus (真骨下纲:虾虎鱼科)

Rhinogobius immaculatus, a new species of freshwater goby (Teleostei: Gobiidae) from the Qiantang River, China

  • 摘要: 本文记述中国钱塘江水系淡水虾虎鱼一新种,无斑吻虾虎鱼 Rhinogobius immaculatus sp. nov. 。本种可以如下特征区别于同属物种: 第二背鳍 I, 7–9;臀鳍 I, 6–8;胸鳍 14–15;纵列鳞 29–31;横列鳞 7–9;背鳍前鳞 2–5;椎骨数 27 (罕有 28);前鳃盖管缺失或仅具2孔;雄性眼下具一红色斜纹;雄性鳃盖膜大部橘红色,其后方和鳃盖下方具3–6分离或相连的不规则红色斑点;尾鳍基部中央具一黑色斑点;雄性第一背鳍前方不具黑色斑点。

     

    Abstract: A new freshwater goby, Rhinogobius immaculatus sp. nov. , is described here from the Qiantang River in China. It is distinguished from all congeners by the following combination of characters: second dorsal-fin rays I, 7–9; anal-fin rays I, 6–8; pectoral-fin rays 14–15; longitudinal scales 29–31; transverse scales 7–9; predorsal scales 2–5; vertebrae 27 (rarely 28); preopercular canal absent or with two pores; a red oblique stripe below eye in males; branchiostegal membrane mostly reddish-orange, with 3–6 irregular discrete or connected red blotches on posterior branchiostegal membrane and lower operculum in males; caudal-fin base with a median black spot; and no black blotch on anterior part of first dorsal fin in males.

     

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