MACRURUS FRAGILIS. 203 
dorsal low, feebly developed anteriorly. Anal more developed than second 
dorsal, originating backward of the first dorsal about half the length of the 
base of the latter. Vent close to the first ray of the anal, backward from 
the head two fifths of latter’s length. Ventrals small, inserted on a vertical 
from the origin of the pectorals, first ray with a filament reaching to the 
vent. Pectorals medium, passing backward of the anal origin. Scales 
harsh with short, sharp, closely set spinules in longitudinal keel-like series, 
the posterior being larger and extending beyond the scale. Five rows of 
scales between the lateral line and the base of the first dorsal fin. Pyloric 
appendices seven. 
Dark grayish brown or blackish, silvery below the scales; linings of body 
cavity blackish to silvery. First dorsal and pectorals blackish, 
Station. Latitude. Longitude. Depth. Temperature. Bottom. 
3394 UPA ANS 79° 35’ W. 511 fathoms 41.8° F. Dk. gn. M. 
3356 7° 9/ 30” N. 81° 8’ 30” W. 546 « 40.1° F, Sft. bl. M. 
Macrurus fragilis sp. n. 
Plate XLVI. fig. 1. 
Bret iio) pele Otay CAs liidassa Vis Ogaden LO. 
Form elongate, attenuate; body and head compressed; caudal region 
slender and whiplike. Head about one seventh, and body cavity less than 
one fourth of the total length. Depth of body two thirds of the length of 
the head, width of body or head three fifths of the depth. Greatest depth 
of the caudal region hardly more than half the depth of the body. The 
dorsal line from the nape to the end of the tail is nearly straight; close 
behind the belly the ventral line rises abruptly about halfway to and thence 
gradually approaches the dorsal line toward the end of the tail. Top of 
lead flattened ; sides very little convergent forward, nearly parallel. Snout 
broad, blunt, as long as the eye, equal the width of the interorbital space, 
median angle prominent, distance from one of the lateral angles to the 
other equal to that across the head between the eyes. Suborbital ridge 
low, rounded. Large mucous channels on top of the head; a low median 
prominence separates them backward to or between the front portions of 
the eyes. Eye large, one fourth as long as the head, equal to the length 
of the snout, or a trifle less than the width of the interorbital space. Mouth 
of medium size; maxillary subtending the entire orbit. Teeth small, in 
