Trimma yanoi Suzuki & Senou, 2008
Pudgy pygmygoby
Trimma yanoi
photo by Hazes, B.

Family:  Gobiidae (Gobies), subfamily: Gobiinae
Max. size:  2.18 cm SL (male/unsexed); 2.11 cm SL (female)
Environment:  demersal; marine; depth range 8 - 70 m
Distribution:  Western Pacific: Philippines, Indonesia, Ryukyu Is., and Japan.
Diagnosis:  Dorsal spines (total): 7-7; Dorsal soft rays (total): 10-10; Anal spines: 1-1; Anal soft rays: 9-9; Vertebrae: 26-26. This species can be distinguished from its congeners by the following characters: higher anterior (16-16.5) and posterior (15.5-16) transverse scale counts (vs. <13); without scales on predorsal midline; elongate spines of first dorsal fin absent; fifth pelvic-fin ray branched, 60-64% of fourth ray in length; basal membrane between innermost pelvic-fin rays 61-64% of length of fifth ray; without interorbital or postorbital trough; 24-26 longitudinal scales; body scales gradually increase in size posteriorly with scales on lateral midline largest; ground color of head and body semi-translucent and deep red, a dark grayish brown broken stripe on upper part of opercle when fresh (Ref. 75202).
Biology:  Inhabits coral reef caves and crevices in 8-70 m (Ref. 90102).
IUCN Red List Status: Least Concern (LC); Date assessed: 07 September 2021 Ref. (130435)
Threat to humans:  harmless


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