The genus OgyridesStebbing, 1914 comprises 12 recognized species of small marine shrimps distributed in tropical and temperate waters worldwide. Ogyrides occidentalis (Ortmann, 1893), described for Brazil, was considered a junior synonym of Ogyrides alphaerostris (Kingsley, 1880). The aim of this study was to revalidate O. occidentalis from the Brazilian coast based on morphological and molecular data (16S gene), and to provide a redescription, illustrations and a comparison with congeners. As expected, O. occidentalis is close to O. alphaerostris but can be separated by molecular data, the proportional size of the second article of the antennular peduncle in relation to the third article (3–4 times as long as the former, and 2–2.5 times as long as the latter), and the size of the scaphocerite (not reaching the distal part of the second article of the antennular peduncle in O. occidentalis, while always reaching or sometimes overreaching the distal part of the second article of the antennular peduncle in O. alphaerostris). We also provided a table comparing key morphological characteristics of all known species of the genus, and discuss the validity of thelycum-like characters in the taxonomy of Ogyrides.

中文翻译：

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基于形态学和线粒体DNA证据从巴西对Ogyrides occidentalis（Ortmann，1893）（十足目：Caridea：Ogyrididae）进行重新验证

甘草属1914年的《刺杀》包括12种公认的小型海洋虾，分布在全球热带和温带水域。Ogyrides occidentalis（Ortmann，1893年，在巴西描述，被认为是Ogyrides alphaerostris（金斯利（1880）。这项研究的目的是基于形态和分子数据（16S基因）重新验证来自巴西海岸的O. occidentalis，并提供重新描述，插图以及与同类物的比较。正如预期的那样，O. occidentalis接近于O. alphaerostris，但可以通过分子数据分开，第二个花冠状花序与第三个花冠的比例大小（是前者的3-4倍，而第二个是–后者长的2.5倍），以及橄榄石的大小（未达到O. occidentalis的第二个花序梗的远端），但总是到达或有时超过O. alphaerostris的第二节的花序梗的远端）。我们还提供了一个表格，比较了该属所有已知物种的关键形态特征，并讨论了甘草类特征在Ogyrides分类中的有效性。