Hector's goby (Koumansetta hector) is a species of goby native to the Indian Ocean (including the Red Sea) to the islands of Micronesia in the western Pacific Ocean.
Short description - Dorsal spines (total): 7; Dorsal soft rays (total): 15-16; Anal spines: 1; Anal soft rays: 15 - 16. Has a similar pattern to that of A. rainfordi, but is bluish-black rather than green, with yellow longitudinal stripes and a chain of ocelli from the base of the second dorsal fin to the upper caudal rays; characterized by having elongate and filamentous first two dorsal spines in adult; united pelvic fins, frenum present; rounded caudal fin, usually slightly shorter than HL; longitudinal scale series 65-70; ctenoid body scales, becoming cycloid anterior to posterior part of first dorsal fin; head scaleless; depth of body 4.6-5.0 in SL.
Hector's goby habitat
This species is observed solitary or in pairs on sand bottom or rubble close to reef edge from 3-30 m (Allen and Erdmann 2012), on sand and patch reefs, picking plankton from rubble. It can also be found hiding in urchin spines as well as on sandy patches under rock overhangs (Stiefel et al. 2014). This omnivorous (Randall and Goren 1993) species spawns in pairs producing a benthic egg clutch (Brandl and Bellwood 2014). Its maximum recorded standard length is 8.5 cm SL (Kuiter and Tonozuka 2001).