Author: (Roule, 1919)
Lycodes crassiceps (Roule, 1919)
Diagnosis: body fairly elongate, its depth 11-14% TL at anal origin, covered with scales up to pelvic fins and nape and on bases of all fins. Head very small, 13-14% TL. Crests on chin joined anteriorly; front palatine teeth in 2 rows. Pectoral finrays 18-19; preanal distance 36-41% TL. Lateral line double, with ventral and midlateral branches. Vertebrae 112-119 (precaudal 28-30). Colour: uniformly dark brown, darker on lower part of body and towards margins of fins; peritoneum black. Size: to 54 mm.
Habitat: benthic on muddy bottoms at 1,100-2,160 m. Food: sipunculids, polychaetes. Reproduction: no data.
Distribution: Bay of Biscay (type specimens). Elsewhere, off western coasts of Africa (22° 20' N, 17°30' W and 18° 26' S, 14° 06' E).