Setarches guentheri Johnson 1862 and Setarches longimanus (Alcock 1894 ) are similar to each other in sharing III, 4–6 (usually 5) anal-fin rays, a moderately deep body (29.8–42.9% of standard length; SL), three sharp spines on the lacrimal, scales absent on the lower jaw, and a fresh body color ranging from dusky-red to scarlet, S. guentheri having been considered distinguishable from the latter due to a well-developed second preopercular spine (absent or reduced in S . longimanus ). Newly recognized diagnostic features of S. guentheri include the number of predorsal scales, exposed thoracic and abdominal scales, and number of ventral and caudal vertebrae. Morphological characters, including ontogenetic changes and intraspecific variation, of S . guentheri are described in detail, based on non-type specimens and all available type specimens of nominal species of S . guentheri . The distribution of S . guentheri , including a range extension to the Nazca Ridge, eastern Pacific, is also reviewed, based on previous records and examined specimens. The remarkable low genetic divergence and undefined geographical isolation in S . guentheri between the Indo-Pacific and Atlantic oceans were supported by comparison of 591 bp of the COI gene sequences from 39 and 4 specimens of S . guentheri and S . longimanus , respectively.

中文翻译：

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重新描述环球深水蝎子鱼 Setarches guentheri (Setarchidae)

Setarches guentheri Johnson 1862 和 Setarches longimanus (Alcock 1894) 在共享 III、4-6（通常 5）条臀鳍鳍条、中等深度的身体（标准长度的 29.8-42.9%；SL）、三个锋利泪腺上的刺，下颌上没有鳞片，新鲜的体色从暗红色到猩红色不等，由于第二个前鳃盖骨发育良好（S. guentheri 没有或减少）被认为可与后者区分开来。 .longimanus ）。新确认的 S. guentheri 诊断特征包括前背鳞片的数量、暴露的胸椎和腹部鳞片以及腹椎和尾椎骨的数量。S 的形态特征，包括个体发生变化和种内变异。guentheri 被详细描述，基于非模式标本和 S 的标称物种的所有可用模式标本。根瑟里 S 的分布。guentheri ，包括延伸到东太平洋纳斯卡海脊的范围，也根据以前的记录和检查过的标本进行了审查。S 中显着的低遗传差异和未定义的地理隔离。印度-太平洋和大西洋之间的 guentheri 得到了来自 39 和 4 个 S 标本的 591 bp COI 基因序列的比较的支持。根瑟里和 S . longimanus ，分别。印度-太平洋和大西洋之间的 guentheri 得到了来自 39 和 4 个 S 标本的 591 bp COI 基因序列的比较的支持。根瑟里和 S . longimanus ，分别。印度-太平洋和大西洋之间的 guentheri 得到了来自 39 和 4 个 S 标本的 591 bp COI 基因序列的比较的支持。根瑟里和 S . longimanus ，分别。