About Acanthemblemaria spinosa Metzelaar, 1919
The spinyhead blenny, Acanthemblemaria spinosa Metzelaar, 1919, has an elongated body covered in mottled black, white, and red coloration across its entire form. Like most blennies, this species has small, hair-like appendages above its large, red eyes. Its dorsal fin contains 20 to 22 spines and 13 to 16 soft rays, while its anal fin has two spines and 21 to 25 soft rays. This fish reaches a maximum total length of 2.8 cm (1.1 in).
Spinyhead blennies are native to the tropical western central Atlantic Ocean and the Caribbean Sea. Their range extends from Florida, the Bahamas, and the Antilles down to Curaçao. They typically live on small, sandy-surrounded rocky reefs, and are classified as tube blennies because they occupy coral holes or empty worm tubes, where they can poke their heads out from hiding. They can be found at depths down to approximately 20 meters (66 ft).