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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Echinogobius: Greek, echinos = sea urchin, hedgehog + see under Gobius; hayashii: Named for Masayoshi Hayashi.
Eponymy: Dr Masayoshi Hayashi is Curator, Yokosuka City Museum. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 1 - 20 m (Ref. 30347). Temperate
Indo-West Pacific: Western Australia and Japan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.0 cm SL male/unsexed; (Ref. 30347)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 12; Anal spines: 1; Anal soft rays: 12. Characterized by pale grey color grading to white ventrally; presence of blue-edged red to pink band from occiput to cheek; side of body with variable-sized brown spots on side of body and on dorsal and caudal fins; some larger spots (on shoulder region and first dorsal fin) surrounded by small blue-white spots; upper half of side of body and along base of second dorsal fin with scattered small blue-white spots; hard and pungent first dorsal spine of first dorsal fin, fifth spine forming short filaments; lanceolate caudal fin; longitudinal scale series 29-32; all scales cycloid; predorsal scales absent; depth of body 6.8-7.8 in SL (Ref. 90102).
Body shape (shape guide): elongated.
Occurs on clear sandy bottoms with fast tidal currents. Retreats in burrows made possibly by sea cucumbers or polychaetes (Ref. 30347).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Iwata, A., S. Hosoya and Y. Niimura, 1998. Echinogobius hayashii, a new genus and species of Gobiidae. Ichthyol. Res. 45(2):113-119. (Ref. 30347)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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