Specimen-based records of the domestic-introduced fish, Cobitis magnostriata (Teleostei: Cobitidae), from the Kumozu River of Mie Prefecture and the Wara River of Gifu Prefecture, central Japan

A male specimen [68.4 mm standard length (SL)] of a spined loach, Cobitis magnostriata Nakajima, 2012 (Teleostei: Cobitidae), collected from the Kumozu River of Mie Prefecture was found from the ichthyological collection at the Kyoto University Museum (FAKU). Though C. magnostrata is an endemic freshwater fish species of Lake Biwa-Yodo River basin, it is also recorded from Tokyo Metropolis, Yamanashi, Shizuoka, Gifu, Aichi, Fukui, Nara, Wakayama and Yamaguchi prefectures as a domestic-introduced species. Thus, the specimen from the Kumozu River represents the first record of C. magnostriata from the prefecture. In addition, two male specimens (72.3–72.6 mm SL) collected from the Wara River of Kiso River System, Gifu Prefecture on 31 August 1924 and deposited in the Department of Zoology, the University Museum, the University of Tokyo (ZUMT), represent the oldest records of C. magnostriata in the prefecture. The populations of C. magnostriata in Mie and Gifu prefectures may have been artificially introduced together with Plecoglossus altivelis altivelis (Temminck and Schlegel, 1846) from the Lake Biwa.