Cryptocentrus albidorsus (Yanagisawa, 1978)
White-backed shrimpgoby
photo by Allen, G.R.

Family:  Gobiidae (Gobies), subfamily: Gobiinae
Max. size:  7.5 cm SL (male/unsexed)
Environment:  reef-associated; marine; depth range 1 - 5 m
Distribution:  Western Pacific: Philippines, Taiwan, the Ryukyu Islands, and Palau.
Diagnosis:  Dorsal spines (total): 6-7; Dorsal soft rays (total): 11-11; Anal spines: 1-1; Anal soft rays: 10-10. Resembles C. leucostictus and C. maudae, but lacks dark bars dorsally. Characterized by the following: brilliant white snout and back; brown color on most of head and body with variable-sized white spots; white spot on base of upper pectoral fin rays; basal part of lower pectoral fin with white spot or triangular marking; united pelvic fins, presence of frenum; longitudinal scale series 113-130; head without scales; greatest depth of body 5.9-6.3 in SL; rounded caudal fin, slightly longer than head (Ref. 90102).
Biology:  Lives in silty sandy substrate with small boulders or large rubble pieces in few meters depth (Ref. 48637). Associated with snapping shrimp in their burrows.
IUCN Red List Status: Least Concern (LC); Date assessed: 27 August 2020 Ref. (130435)
Threat to humans:  harmless


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