Trimma erdmanni Winterbottom, 2011
Erdmann’s pygmygoby
photo by Allen, G.R.

Family:  Gobiidae (Gobies), subfamily: Gobiinae
Max. size:  2.62 cm SL (male/unsexed)
Environment:  demersal; marine; depth range 12 - 66 m
Distribution:  Western Pacific Ocean: Indonesia, Papua New Guinea and the Philippines.
Diagnosis:  Dorsal spines (total): 7-7; Dorsal soft rays (total): 9-9; Anal spines: 1-1; Anal soft rays: 8-8. This species is distinguished from its congeners by having the following characters: a reddish-orange body with a darker red to orange lateral stripe with darker borders on the body which extends anteriorly onto the head, where it bifurcates, and there is a thin longitudinal light stripe below the eye; usually lacks scales in the predorsal midline but when present, are separated from the first dorsal fin by an unscaled area; the second spine of the first dorsal is elongated; dorsal rays 9; anal rays 8; a single branch in the fifth pelvic fin ray; gill rakers on the first gill arch 19-22 (Ref. 87358); characterized further by having longitudinal scale series 23-24; cheek or opercle without scales; depth of body 3.8-4.2 in SL (Ref. 90102).
Biology:  Inhabits coral reefs, often outer slopes on isolated rock or coral outcrops in 12-66 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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