ALEPOCEPHALUS ASPERIFRONS. 291 
The specimen from which the description is taken had a length of nearly 
or quite seventeen inches. 
Deep black over the entire surface and on the linings of the body cavity. 
Station. Latitude. Longitude. Depth. Temperature, Bottom. 
3365 5° 31’ N. 86° 31’ W. 1010 fathoms 37°F. Y1. glob. Oz. 
Alepocephalus asperifrons sp. n. 
Plate LIX. fig. 1. 
Br. r. 6; D; 16-17; A. 17-19; V..7; P. 11; Ll. 56-58; Ltr. 8 + 1 + 
16 ca. 
Compressed, depth nearly one fifth of the entire length, caudal region of 
moderate slenderness. Head about one third of the total length, broad at 
the back, narrowing toward the throat, broadly curved from the occiput to 
the end of the snout, with a concave depression or trough from the nape 
to the internarial region; crown dish-like on the parietal region, with a 
short ridge putting forward from the occipital crest. The frontal ridges are 
continuous and converge to a point above the vomer on the snout, where 
they turn abruptly outward; posteriorly they appear to consist of single 
rows of rough more or less confluent tubercles, giving the edges of the 
ridges a very rough or serrated profile; these rough crests extend forward 
between the orbits. Snout moderate, somewhat concave on the sides for- 
ward of the eyes, wider about the mouth, narrow between the nostrils, as 
long as the eye, blunt. Mouth wide; maxillz broadening and rounded pos- 
teriorly, reaching little backward of the middle of the eye, toothless. Teeth 
small, slender, acicular, in single series, on intermaxillaries, palatines, and 
dentaries. Gill covers thin and membranous at the margins, extending back 
on the bases of the pectorals. Gill membranes not united, free from the 
isthmus. Pseudobranchiz well developed. 
Dorsal origin two lengths of the head from the end of the snout; dorsal 
base shorter than its distance from the median caudal rays. Anal origin be- 
low the third or the fourth ray of the dorsal; anal base extending backward 
of the base of the dorsal one or two rays. Vent little behind the first dorsal 
ray. 
Entire length about twelve inches. 
Surface and internal linings deep black. 
