| Family: |
Gobiidae (Gobies), subfamily: Gobionellinae |
| Max. size: |
8.05 cm SL (male/unsexed) |
| Environment: |
demersal; freshwater; brackish; marine, amphidromous |
| Distribution: |
Northwest Japan (NE and central Honshu and southern Hokkaido), Kuril Is. (Kunashir), southern Sakhalin, and southern Primorski Krai in Russian Far East. |
| Diagnosis: |
Dorsal spines (total): 6-7; Anal spines: 1-1; Anal soft rays: 9-12. This species is distinguished by the following characters: base of caudal fine with a dark, y-shaped blotch and when fresh white spots on the pectoral fin near its insertion; head broad and depressed, the width greater than its depth; anterior oculoscapular canals reaching beyond postorbital region, opening through paired C, D, F, and G pores; right and left D pores distinct, separated by less than 1/3 orbital diameter; several sensory papillae in row 'n'; anteriorly protruding lower jaw beyond the upper one; maxilla extending posteriorly to or beyond posterior margin of eye; posterolateral end of mental flap indistinct; no fleshy, barbel-like processes behind chin; body with a series of broad bands formed by dark pigment patches; dusky caudal fin with dark blotches forming distich bands; predorsal scales 19-26; longitudinal scale series 71-78; modal vertebral count 15 + 18; first dorsal fin often with 6 spines, anteriormost pterygiophore usually inserted in 4th interneural space; modal second dorsal fin ray I,11, anteriormost pterygiophore usually inserted in 11th interneural space; modal anal fin ray count I,11, origin anterior to 3rd soft ray or second dorsal; first dorsal fin with distinct oblique bands, a dark blotch on posterior margin (Ref. 81467). |
| Biology: |
Often hidden among rocks in shallow, fast-moving, rock bottom streams and rivers. Collected in water temperatures exceeding 30°C (Ref. 81467). |
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 09 March 2020 Ref. (130435)
|
| Threat to humans: |
harmless |
Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.
