Elacatinus tenox

Common Name

Slaty Goby

Year Described

Böhlke & Robins, 1968


Dorsal Fin: VII, 12
Anal Fin: 10
Pectoral Fin: 17-19
Caudal Fin: 15 branched
Gill Rakers:
Vertebrae: 28

Mouth subterminal. Body scaleless. Pelvic fins fused to form a sucking disk.


Body uniformly dark gray, becoming paler on the belly. Body stripe short and restricted to the post-ocular area. Stripe color is unrecorded but possibly pale blue or yellow. Snout with yellow spot. Fins speckled with melanophores.


Maximum size to 22.2mm SL.


Deeper reefs around 17-21m. Inhabits sponges. Does not engage in cleaning behavior.


Southern Caribbean Sea: known from St. Croix, Dominica, Nevis, Isla de Aves and Panama.


Böhlke, J. E. and C. R. Robins. 1968. Western Atlantic seven-spined gobies, with descriptions of ten new species and a new genus, and comments on Pacific relatives. Proceedings of the Academy of Natural Sciences of Philadelphia v. 120: 45-174.