MACRURUS CANUS. Dili 
with similar spines. Top of head and snout covered with scales; lower sur- 
face of head, below the snout and the suborbital ridge, naked. 
Description taken from an eight inch specimen. 
Black on opercles, chest, and belly; white over the mucous chambers, 
from the crown and the suborbital region forward to the end of the snout ; 
blackish tinged with red on the muscular tracts. 
Station. Latitude, Longitude. Depth, Temperature. Bottom, 
3384 7° 31’ 30” N. 79° 14 W. 458 fathoms 42° ¥. Gn. 8. 
This species appears to be somewhat closely allied to Coelocephalus aci- 
penserinus Gilb. and Cram.; it differs in length of snout, size of eye, and 
carinz of scales. 
Macrurus canus sp. n. 
Plate XLIX. fiy.2; Plate LXXXIV. figs. 1, 2, Lat. Syst. 
Bror. 6; Dr 11-1055 A 107s V.7; BP. 19-21. 
The form in this species resembles that of Jf. parailelus Giint., but the 
snout is shorter and there are marked differences in the fins; as, for in- 
stance, in the anal, which originates much in advance of the second dorsal. 
The body is compressed, in depth one sixth of the total length, and the caudal 
region is slender. Head compressed, angular, one fourth of the total, sharp 
at the snout, scales rough. Snout medium, one third as long as the head, 
more than the length of the eye or the width of the interorbital space, 
sharp pointed, translucent, sharp-edged at the sides, with a low rostral keel 
extending back to the interorbital space. Skull with a short ridge at the 
nape, one at each side of the parietal region, and one above each orbit to the 
upper angle of the operculum and to the rostral edge. These last with the 
suborbital ridges, which have nearly the entire length of the head, serve to 
protect the well developed mucous chambers. There is also a ridge around 
each nasal chamber. The parietal ridges turn outward at the nape. The 
distance from the end of the snout to the intermaxillaries equals that to the 
orbit. Mouth small, inferior; maxillary extending below three fifths of 
the orbit. Teeth small, subequal, in villiform bands. Barbel small, one 
third of the length of the eye. Between the ridges the frontal region is 
slightly concave. Eye large, two sevenths as long as the head, shorter than 
the snout, equal to the width of the interorbital space. Cheeks vertical to 
slightly convex. Mucous cavities of the head very large. A circular space 
free from scales on the chest between the ventrals. Dorsal origin above the 
