出典:Wiktionary
出典:『Wiktionary』 (2026/07/18 19:23 UTC 版)
From the superseded genus name Menobranchus (Harlan, 1824), from Ancient Greek μένω (ménō, “to remain”) + βρᾰ́γχῐον (brắnkhĭon, “gill, branchia”), because the external branchiae are permanent, unlike those of some other amphibians.