Gnathopogon elongatus elongatus

Basic information
Scientific name	Gnathopogon elongatus elongatus	Click to magnify
Common names	Tamoroko
Higher taxon	Cyprinidae, Cypriniformes, Actinopterygii
Natural range	Kanto District to western Honshu, Shikoku
Habitat	Middle and lower part of river, lakes and ponds (especially in middle to bottom).

Invasion information
Range in Japan	Tohoku District and Kyushu.
Origin	Unknown.
Date	Unknown.
Route	Unknown.
Impact	Unknown impact.
Regulation in Japan	No action for prevention, mitigation, control, or eradication.
Introduced range in other countries	None.

Reference	Notes
Froese & Pauly (eds) (2009) FishBase (Accessed on 2010-12-06) http://www.fishbase.org/search.cfm Kawanabe et al. (eds) (2002) Freshwater Fishes of Japan, 3rd ed.. Yama-kei Publishers, Tokyo (in Jpn) Matsuzawa & Senou (2008) Alien fishes of Japan. Bun-ichi Sogo Shuppan, Tokyo (in Jpn)