Entomacrodus striatus is the most common and widely-spread species of its genus, and is aptly named "Rockskipper" due to its active nature; when threatened, these blennies take refuge in small holes in the reef, backing tail-first into them.
Details
§ 01
size
Max. 9 cm
color
Whitish with numerous small irregular black spots on body which may group to form about 4 indistinct large blotches on upper side. An irregular black line behind the eye.
This species is typically found in the shallow waters of both sheltered lagoons and exposed outer reefs, where it feeds on algae.
distinctive characters
The dorsal fin is deeply incised with 12-14 spines and 14-16 rays, while the anal fin has two spines and 15-18 rays. The margin of the upper lip is usually fully crenulated, and there is a cirrus on each side of the nape (occasionally absent). The supraorbital cirrus has many branches.