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Abstract：
The species of the genus Psammogorgia Verrill, 1868 from the shallow waters of the tropical eastern Pacific were mainly described from 1846 to 1870. Very few contributions were published subsequently. Recently, the genus was revisited with the addition of two new species. However, a comprehensive generic study is still missing for the eastern Pacific. Psammogorgia is characterised by having axes cores without mineralisation, mainly coarse irregular spindles and thorny, leafy or tuberculate clubs coenenchymal sclerites and the anthocodial armature with distinct collaret and points arrangements. Herein a taxonomic revision of the genus is presented based on type material which was morphologically analysed and illustrated using optical and scanning electron microscopy. Comparative character tables are provided for comparison among species in the genus, along with a taxonomic key. Moreover, the taxonomic status of each species was analysed. The genus Psammogorgia comprises six valid species and two varieties, and three lectotypes and a new combination are proposed to establish the taxonomic status of these species.
摘要：
PsammogorgiaVerrill属的物种，1868年从热带东太平洋的浅水区主要描述了1846年至1870年。随后发表的文章很少。最近,该属被重新审视，增加了两个新物种。然而,东太平洋仍然缺乏全面的通用研究。Psammogorgia的特征是具有没有矿化的轴心，主要是粗糙的不规则纺锤和棘手的，多叶的或结节的球杆间充质硬岩和有不同的结缘和点排列的无花果电枢。本文根据类型材料对该属进行了分类学修订，并使用光学和扫描电子显微镜对其进行了形态学分析和说明。提供了比较特性表，用于比较属中的物种，还有一个分类键。此外，分析了每个物种的分类状况。Psammogorgia属包括六个有效种和两个变种，并提出了三种选择型和一种新的组合来建立这些物种的分类地位。
