Brazilian Fanged Blenny

Ophioblennius trinitatis

The Brazilian fanged blenny, Ophioblennius trinitatis, is a small combtooth blenny endemic to the southwest Atlantic Ocean, particularly along the coast of Brazil. This species is characterized by its blunt head and large eyes, bordered by a distinctive blue coloration. Adults exhibit a homogenous brown color with pale yellow fins, though they can change to a banded pattern under stress. Juveniles are bicolored, with an olive green front and a yellow rear half. These blennies are typically found in subtropical coral reefs and intertidal zones, preferring depths up to 53 meters, though they are most commonly observed shallower than 30 meters. They inhabit areas with complex substrates that provide ample hiding spots among rocks and corals. The Brazilian fanged blenny is a primary consumer, feeding on detritus, various types of algae, ascidians, and invertebrates. They exhibit a unique feeding strategy by consuming more in the morning to coexist with other species. Ophioblennius trinitatis are territorial and diurnal, often displaying aggressive behavior towards other fish when defending their habitat. They are oviparous with a year-round reproductive cycle, and spawning is influenced by lunar phases. Males guard the nests after females lay eggs, which are attached to substrates using adhesive pads. The IUCN lists this species as Least Concern.