Bicolor blenny's description
Bicolor blenny(Ecsenius bicolor) is a blenny from the Indo-Pacific.
Short description - Dorsal spines (total): 11 - 12; Dorsal soft rays (total): 15-18; Anal spines: 2; Anal soft rays: 17 - 21. Occurs in three color phases: one black anteriorly and yellow posteriorly (bicolor phase), the others black dorsally with a broad white lateral band and dusky belly with or without a yellow tail.
Max length - 11.0 cm TL male/unsexed.