Elacatinus pridisi

Common Name

Trindade Cleaner Goby

Year Described

Guimarães, Gasparini & Rocha, 2004


Dorsal Fin: VII, 11-12 (usually 12 total elements)
Anal Fin: 11 (total elements)
Pectoral Fin: 17-18 (usually 18)
Caudal Fin:
Gill Rakers:
Vertebrae: 28

Mouth ventral with an overhanging snout. Body scaleless. Pelvic fins fused to form a sucking disk.


Body stripe bright yellow; runs from eye to tail and is fairly uniform in width throughout its length. This stripe is bordered by broad dark stripes that cover most of remainder of body. The lower dark stripe reaches base of anal fin. Snout with elliptical yellow spot surrounded by black. Lower head paler than rest of body. Almost entire tail fin black with yellow stripe tapering. Fin rays noticeably black with clear membranes.


Maximum size to 28.4mm SL.


Rocky reefs and algae beds from 3-30m. Engages in cleaning behavior.


Known only from Trindade Island off S.E. Brazil.


Guimarães, R. Z. P. , J. L. Gasparini and L. A. Rocha. 2004. A new cleaner goby of the genus Elacatinus (Teleostei: Gobiidae), from Trindade Island, off Brazil. Zootaxa No. 770: 1-8.

Other Notes

Differs from the other two Brazilian species (Elacatinus phthirophagus and E. figaro) by having more pectoral fin rays, conspicuous dark finrays, and having the dark lateral stripe reaching the anal fin (Guimarães et al., 2004).