Tomiyamichthys alleni Iwata, Ohnishi & Hirata, 2000
Allen's shrimpgoby
photo by Allen, G.R.

Family:  Gobiidae (Gobies), subfamily: Gobiinae
Max. size:  3.8 cm SL (male/unsexed); 4.2 cm SL (female)
Environment:  demersal; marine; depth range 15 - 40 m, non-migratory
Distribution:  Western Pacific: Japan and Indonesia.
Diagnosis:  Dorsal spines (total): 6-7; Dorsal soft rays (total): 10-10; Anal spines: 1-1; Anal soft rays: 10-10. Characterized by pale grey color on back, ventrally white; upper side from nape to caudal peduncle with 4-5 irregular brown blotches/saddles; head and body with scattered dark-edged orange spots; oblique black band under eye; orange spots on first and second dorsal fins; 2-3 dark spots near margin of first dorsal fin; triangular first dorsal fin, first two dorsal spines prolonged; united pelvic fins, well developed frenum present; longitudinal scale series 25-50; head without scales; cycloid scales covering body; greatest depth of body 5.0-5.6 in SL; rounded caudal fin, shorter than head length; absence of posterior oculoscapular sensory canal (Ref. 90102).
Biology:  The species occurs on fine sandy bottoms and is associated with the shrimp Alpheus randalli.
IUCN Red List Status: Data deficient (DD); Date assessed: 11 March 2015 Ref. (130435)
Threat to humans:  harmless


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