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首页> 外文期刊>Zootaxa >A new species of Hypostomus Lacepede, 1803 (Siluriformes: Loricariidae) from rio Itapicuru basin, Bahia State, Brazil
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A new species of Hypostomus Lacepede, 1803 (Siluriformes: Loricariidae) from rio Itapicuru basin, Bahia State, Brazil

机译：1803年，来自巴西巴伊亚州伊塔皮库鲁盆地的Hypostomus lacepede（Siluriformes：Loricariidae）新种

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摘要

A small-bodied new species of Hypostomus is described from the rio Itapicuru basin, Bahia, Brazil. The new species is distinguished from most congeners mainly by having the lower caudal-fin lobe distinctly longer than the upper lobe and absence of conspicuous dark spots on posterior half of body. It differs particularly from congeners occurring in northeastern coastal Brazilian drainages and the rio Sao Francisco basin by having the anterior portion of the abdomen completely plated and the posterior portion plated only on a narrow median line, leaving large lateral areas naked, dark spots on anterior portion of trunk similar in size or slightly larger than those on head, absence of conspicuous spots on posterior half of trunk and caudal fin, and absence of keels on head and trunk.
机译：在巴西巴伊亚州的伊塔皮库鲁盆地描述了一种小体型的Hypostomus新物种。该新物种与大多数同源物种的区别主要在于下尾鳍叶明显长于上叶，并且身体后半部没有明显的黑点。它与巴西东北部沿海排水沟和里约圣弗朗西斯科盆地的同族人特别不同，腹部的前部完全镀层，后部仅镀在狭窄的正中线上，留下大片的侧侧区域裸露，躯干前部的黑点大小相似或略大于头部， 躯干和尾鳍后半部无明显斑点，头部和躯干无龙骨。

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