A New Species of Lagochondria (Crustacea: Copepoda) Parasitic on Callionymid Fish: First Record of Precopulatory Mate Guarding in Fish-Parasitic Cyclopoid Copepods, and of the Occurrence of the Genus in the North Pacific

A new species of the genus Lagochondria of the parasitic cyclopoid family Chondracanthidae is described from the gill cavity of the callionymid Repomucenus virgis (Jordan and Fowler, 1903) collected from off Kii Peninsula, Japan. This is the first record of the occurrence of the genus from the North Pacific, and is only the second species in the genus. The female of the new species is easily distinguished from that of the Australian type species...