Rapa Triplefin

Short supraorbital tentacle; first dorsal fin shorter by about 50% than second dorsal fin; females dark bluish gray, bearing black double bars; back with series of pink blotches found on edges of scales; abdomen, chest, cheek, and lips pale gray with black spots; red coloration on top of head; a broad, oblique black band from eye to mouth and on chin; transparent dorsal fin bearing red rays; dusky anal and caudal fins; base of caudal black; males generally black with exception of abdomen and presence of a broad oblique band, that is light gray with black dots, on the cheek; fins colored similar as females except with more black on caudal. Dorsal rays III + XI-XIII + 8-10; lateral line interrupted, 17-21 + 14-18; mandibular pores 4-5 + 1 + 4-5 (Ref. 54980).

Dorsal spines (total): 14 - 16; Dorsal soft rays (total): 8 - 10; Analspines: 1; Analsoft rays: 15 - 17

Adults are found in shallow depths, including intertidal pools (Ref. 27223). Eggs are hemispherical to somewhat flattened (Ref. 240, 94114).

Enneapterygius randalli, the Rapa triplefin, is a species of triplefin blenny in the genus Enneapterygius. It was described by Ronald Fricke in 1997. who honoured the American ichthyologist John Ernest Randall in its specific name, Randall collected many of the type series. This species is known only from French Polynesia where it is found off Rapa Iti and Marotiri in the southern Austral Islands.