Callogobius crassus McKinney & Lachner 1984

Characterized by mottled brown body color with dark brown bar on nape; three irregular dark brown bars below first and second dorsal fins; caudal fin base with dark bar; yellowish fins with alternating dark brown and pale bands or rows of dark brown spots; united pelvic fins at bases; absent frenum; rounded caudal fin; longitudinal scale series 19-21; cycloid scales on head and anterior body, ctenoid posteriorly on body; predorsal scales 9-11; head with prominent papillae ridges; absence of cephalic sensory pores; depth of body 3.7-4.4 SL (Ref. 90102).

Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 7 - 8; Analspines: 1; Analsoft rays: 6 - 7

Inhabits reef crevices in 5-25 m (Ref. 90102).