Fiji Clown Blenny

Ecsenius fijiensis

The Fiji Clown Blenny, a member of the combtooth blenny family, is a small reef fish endemic to the coral reefs of the Fiji Islands in the western central Pacific Ocean. It reaches a maximum length of 3.9 centimeters and is characterized by its elongated, oval-shaped body. The dorsal fin of this species is notable for being deeply notched between the spinous and segmented-ray portions, with 12 dorsal spines and 13 to 14 soft rays. The anal fin comprises 2 spines and 15 to 16 soft rays. A distinctive feature of the Fiji Clown Blenny is its dentary incisor teeth, which include anterior canine teeth that closely resemble the incisors. This blenny lacks a lateral line with vertical pairs of pores, terminating posteriorly between dorsal-fin spines 10 and 12, typically at 12. It also has a cirrus on the posterior rim of the anterior nostril. This species inhabits marine environments associated with coral reefs, typically found at depths ranging from 0 to 24 meters. The Fiji Clown Blenny is herbivorous, primarily feeding on benthic algae and weeds. It exhibits oviparous reproduction, with eggs that are demersal and adhesive, attaching to substrates via a filamentous pad. The larvae are planktonic and often found in shallow coastal waters. Divers encountering the Fiji Clown Blenny may observe its grazing behavior on algae-covered reef surfaces. As a harmless species, it poses no threat to humans. According to the IUCN Red List, the Fiji Clown Blenny is categorized as Least Concern.