The scientific name Cottus kazika has been used for over a century as valid for the catadromous fourspine sculpin endemic to Japan. However, recent DNA sequence analyses have indicated a sister relationship between two catadromous species, so-called C. kazika and Trachidermus fasciatus with a great phylogenetic divergence, separated from a monophyletic freshwater spawning clade including the other Cottus species and Baikalian sculpins. Morphological, life-historical, ecological, and karyological characteristics have also suggested that the fourspine sculpin so-called C. kazika is neither a member of Cottus nor Trachidermus. Therefore, the fourspine sculpin is transferred to the genus Rheopresbe. The genus and R. kazika are re-described. The genus Rheopresbe is discriminated from related genus Trachidermus by not having bony ridges on both nape and cheeks and also by presence of entopterygoid, and from the genus Cottus by having teeth on palatines and four spines on preopercle ridges.

中文翻译：

---

日本蜈蚣四刺杜鹃，Rheopresbe kazika (Jordan & Starks)（双鱼座：Cottidae），从 Cottus 属转移

一个多世纪以来，学名 Cottus kazika 一直用于日本特有的流域四刺杜鹃。然而，最近的 DNA 序列分析表明，两个流域物种之间存在姐妹关系，即所谓的 C. kazika 和 Trachidermus fasciatus，它们具有很大的系统发育差异，与包括其他 Cottus 物种和贝加尔杜鹃在内的单系淡水产卵进化枝分开。形态学、生活史、生态学和核学特征也表明，所谓的四刺杜鹃 C. kazika 既不是 Cottus 也不是 Trachidermus 的成员。因此，四刺杜鹃被转移到了 Rheopresbe 属。重新描述了该属和 R. kazika。