Macrurus kolotrachys, Bloch, 1786

Günther, Albert C. L. G., 1878, Preliminary notices of deep-sea fishes collected during the voyage of the H. M. S. “ Challenger ”, Annals and Magazine of Natural History 5 (2), pp. 17-28 : 24

Macrurus kolotrachys .

Snout not much produced, as long as the eye, which is large, its vertical diameter being considerably more than the width of the interorbital space. Anterior edge of the snout with three tubercles, one in the middle and one on each side. Each scale with a median series of spinelets, and with two or more isolated spinelets besides. Upper and lateral portions of the head covered with irregular rough scales, lower naked. There are five scales in a transverse series between the first dorsal spine and lateral line. Distance between the two dorsal fins scarcely equal to the length of the base of the first. Second dorsal spine with small barbs anteriorly ; outer ventral ray produced into a filament. No scaleless fossa on the temple. Barbel very small. No bands or spots.

Deep sea, east of the mouth of the Rio Plata (Station 320), 600 fathoms.