Callogobius sclateri (Steindachner, 1879)
Pacific goby
Bia
photo by Randall, J.E.

Family:  Gobiidae (Gobies), subfamily: Gobiinae
Max. size:  7 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 1 - 37 m
Distribution:  Indo-Pacific: Red Sea and western Indian Ocean to tropical western Pacific from southern Japan and Ogasawara Ids, south to Australia, Queensland, New Caledonia and Tonga.
Diagnosis:  Dorsal spines (total): 7-7; Dorsal soft rays (total): 9-9; Anal spines: 1-1; Anal soft rays: 7-7. Dark bar from eye to upper lip, vertical bar under eye, broad dark band from eye to opercle; vertical bar under first dorsal fin; caudal fin with wavy dark stripes (Ref. 2798); characterized further by pale brown to whitish body color; variably joined pelvic fins at median from base to about two-thirds length of fifth ray; pelvic frenum absent; very long and pointed caudal fin; longitudinal scale series 63-67; cycloid scales on head and anterior body; becoming ctenoid posteriorly; cycloid scales on cheek and opercle; predorsal scales 11, extending to interorbital space; head with prominent papillae ridges; depth of body 4.7-5.5 in SL (Ref. 90102).
Biology:  Found in crevices and caves (Ref. 2334, 9360), usually under loose debris (Ref. 48637).
IUCN Red List Status: Least Concern (LC); Date assessed: 25 June 2018 Ref. (130435)
Threat to humans:  harmless
Country info:  Type locality of Gobiomorphus illotus, BSMP 11531, Polillo (type destroyed, seen by Koumans) (Ref. 129193).


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