Inhabits coastal to outer reef sand slopes to 40 meters depth . Specimens collected from sandy bottom at 35 m depth .
Dorsal spines (total): 7; Dorsal soft rays (total): 13; Anal spines: 1; Anal soft rays: 13. Characterized by pale grey color; ventral surface of body whitish; four brown bars on body; head with irregular brown reticulations and in pale spaces between bars; brown bar across operculum; narrow brown bar under eye; narrow brown band behind eye; head with scattered blue spots/streaks; pelvic fins united by low membrane at base of fins; without median predorsal scales; side of nape with scales extending forward above middle of opercle; longitudinal scale series 92-97; greatest depth of body 7.1-8.5 in SL; lanceolate caudal fin, longer than head length .: elongated; Cross section: circular.
Behavioural data for Masui's shrimp-goby is currently being reviewed.
Diet information for Masui's shrimp-goby is currently being compiled.
Reproduction data for Masui's shrimp-goby is currently being compiled.
Marine; demersal; depth range 12 - 35 m . Subtropical Southwest Pacific: Okinawa-jima, Ryukyu Islands, Okinawa Prefecture (Japan).
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