Bathytroctes macrolepis

Common Name

Koefoed's Smoothhead

Year Described

G√ľnther, 1887


Dorsal Fin: 12-16
Anal Fin: 9-13
Pectoral Fin: 11-12
Pelvic Fin: 7-9
Transverse Scale Rows: 40-43
Gill Rakers: 20-23 (total on first arch)
Branchiostegal Rays: 8

Body moderately elongate and slender, with a large head. Eyes smaller than snout length. Teeth present in a single row in upper and lower jaws. Rear margin of jaw extends to the posterior margin of orbit. Two supramaxilla above maxilla. Dorsal fin origin anterior to anal fin origin. Pectoral fins fairly large. Scales absent on head. Body scales moderate.


Uniformly dark brown.


Maximum size to 40cm SL.


Benthopelagic from 2,500-5,850m.


Gulf of Mexico


McEachran, J.D. and J.D. Fechhelm. 1998. Fishes of the Gulf of Mexico. Volume 1: Myxiniformes to Gasterosteiformes. University of Texas Press, Austin. i-viii + 1-1112.

Whitehead, P.J.P. , M.-L. Bauchot, J.-C. Hureau, J.G. Nielsen and E. Tortonese. 1986. Fishes of the North-eastern Atlantic and the Mediterranean. Vol. I-III. UNESCO. Fishes of the North-eastern Atlantic and the Mediterranean.

Other Notes

Also in the literature under the synonym Bathytroctes (Bellocia) koefoedi (Parr, 1951).