| Family: |
Gobiidae (Gobies), subfamily: Gobionellinae |
| Max. size: |
7 cm TL (male/unsexed) |
| Environment: |
benthopelagic; freshwater, non-migratory |
| Distribution: |
Asia: Japan, from Shizuoka Prefecture and Toyama Prefecture westward to Honshu, Shikoku, and Kyushu. |
| Diagnosis: |
Vertebrae: 27-28. First dorsal fin with 4th ray longest and large, square bluish-black mark on anterior 2/3 of first dorsal fin in male; first dorsal fin with 2nd and 3rd rays longest and pale lacks this large dark mark in male (Ref. 79602). |
| Biology: |
Adults inhabit middle to upper reaches of rivers, and are especially found in open and shallow areas. Breeds from June to August and makes a spawning bed (nest). Eggs are protected by the male. As soon as they hatch, the juveniles live on the river bottom. Not amphidromous. Food fish. |
| IUCN Red List Status: |
Not Evaluated (N.E.) Ref. (130435)
|
| Threat to humans: |
harmless |
Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.
