Abstract A new species of Stylaster is described from the oceanic island of Malpelo, Colombian Pacific. This species belongs to the Stylaster Group A, characterized by having cylcosystems uniformly distributed on all branch surfaces. Stylaster malpeloensis n. sp. is most similar to S. venustus (Verrill, 1870) by its pink coralla and number of dactylopores per cyclosystem, but S. venustus has much more delicate branches and gastropore tubes with a well-developed ring palisade. S. malpeloensis is the first known record of a Stylaster species for the Colombian Pacific and the most southern Stylaster Group A species in the eastern Pacific.

中文翻译：

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来自哥伦比亚太平洋马尔佩洛岛的一种新种 Stylaster（刺胞动物：Hydrozoa：Stylasteridae）

摘要 描述了来自哥伦比亚太平洋马尔佩洛岛的一个新种 Stylaster。该物种属于 Stylaster A 组，其特征在于具有均匀分布在所有分支表面上的环系。Stylaster malpeloensis n. sp. S. venustus (Verrill, 1870) 与 S. venustus (Verrill, 1870) 的粉红色珊瑚和每个环系统的指孔数量最为相似，但 S. venustus 的分支和胃孔管要精致得多，并且具有发达的环栅。S. malpeloensis 是哥伦比亚太平洋 Stylaster 物种的第一个已知记录，也是东太平洋最南端的 Stylaster Group A 物种。