Black Triplefin

9-12 spines in the second dorsal fin, 8-10 rays in the third dorsal fin, 17-20 anal fin rays, 32-37 + 1 lateral scale rows, 13-19 + 17-22 lateral line scales, two median mandibular pores, a black band on the caudal peduncle, about 9 basal dark spots on the female's anal fin, and a overall blackish coloration of the male.

Dorsal spines (total): 12 - 15; Dorsal soft rays (total): 8 - 10; Analspines: 1; Analsoft rays: 16 - 19

Adults inhabit rock and coral reefs (Ref. 90102), from the surface to 15 m, including intertidal pools (Ref. 13227). Eggs are hemispherical and covered with numerous sticky threads that anchor them in the algae on the nesting sites (Ref. 240). Larvae are planktonic which occur primarily in shallow, nearshore waters (Ref. 94114).

fisheries: of no interest

Enneapterygius niger, known commonly as the black triplefin, is a species of triplefin blenny from the Western Pacific Ocean. It is a small species (up to 3.2 cm (1.3 in) total length) that was described by Ronald Fricke in 1994.