Notchfin Blenny

Entomacrodus chiostictus

The Notchfin Blenny is a small reef fish inhabiting the Eastern Central Pacific, from the Gulf of California to Panama, and including offshore islands such as Tres Marias, Revillagigedo, Clipperton, and Cocos. It can grow up to 7.5 cm in length and is commonly found in shallow, rocky reefs covered with vegetation, as well as in tide pools. This species is capable of breathing air when necessary, which aids its survival in intertidal zones. Reproduction in Notchfin Blennies involves distinct pairing, and they lay eggs that adhere to surfaces using a sticky filament. The larvae are planktonic and typically inhabit shallow coastal waters. Divers are likely to encounter these blennies at depths less than 40 meters, with the majority of sightings occurring above 20 meters. The Notchfin Blenny is assessed as Least Concern by the IUCN. Divers may find these fish to be an interesting sight during dives, as they are harmless to humans and display unique behaviors in their natural setting.