A species of Trimma with a yellow head, a grey-brown body, and a distinct oval dark spot above and just anterior to the posterodorsal corner of the operculum. This spot is preceded by a shallow groove which extends along the dorsal margin of the operculum. No predorsal scales, posterior half of the nape with a slightly developed longitudinal ridge in the midline, scales present on either side of the ridge with a narrow scaleless gap between them; slight interorbital trench which extends posteriorly barely beyond mid pupil, no postorbital trench; fifth pelvic fin ray unbranched and 50-70% of the length of the fourth (Ref. 52310).