Ogilbia jeffwilliamsi

Common Name

William's Coralbrotula

Year Described

Møller, Schwarzhans & Nielsen, 2005


Dorsal Fin: 71-82
Anal Fin: 52-61
Caudal Fin: 15-16
Pectoral Fin: 18-21
Vertebrae: 40-44
Gill Rakers: 12-16

Diagnosed by: anterior nostril very close to upper lip. Eye is 2.0-3.0% SL. Premaxillary, dentary, vomer, and palatine with multiple rows of teeth each. Male genitalia described as: “outer pseudoclasper wing-shaped with single curved supporter anteriorly; inner pseudoclasper club-shaped, with prominent appendix inserted at posterior-distal angle; small fleshy lobe at base of hood adjacent to outer pseudoclasper, penis tapering…” Opercular spine with a single tip. Scales on cheek number 6-9. Six infraorbital pores, four supraorbital pores, six mandibular pores, and four preopercular pores. Caudal fin not confluent with dorsal or anal fins. Pectoral fin 11.3-14.6% SL. Anal fin origin at midbody. Pelvic fin reaches past anus. Predorsal area, abdomen, and outer pectoral base scaled. Fins naked. About 20 scale rows vertically from dorsal fin to anal fin origin (Møller et al., 2005).


Body pale yellow with each scale having a dusky center. Green pigment globules on head and body. Peritoneum and vertebral column darker. Fins body colored on base grading to translucent distally.


Specimens range from 22-61mm SL


Shallow reef habitats from 0-15m.


Central and southern Caribbean Sea: Belize to Venezuela and the Greater Antilles.


Møller, P. R., Schwarzhans, W., & Nielsen, J. G. 2005. Review of the American Dinematichthyini (Teleostei: Bythitidae). Part II. Ogilbia. aqua, Journal of Ichthyology and Aquatic Biology, 10(4), 133-207.

Other Notes

The green pigment globules on the body are unique to this species and Ogilbia tyleri.