320 DEEP SEA FISHES. 
separated by a space about equal to the width. Vent at the end of the 
anterior third of the total length. Dorsal low anteriorly, first ray above 
the gill opening, containing three hundred and ninety-seven rays in the 
present specimen. Anal deeper than the dorsal, first ray below the one 
hundred and thirteenth ray of the latter (in a second specimen below the 
one hundred and fifteenth). Caudal narrow, of twelve rays, acuminate, 
continuous with dorsal and anal; caudal region slender and whip-like. 
Four specimens at hand vary in regard to the position of the first ray of 
the anal, which lies below the ninety-third to the ninety-fifth rays of the dor- 
sal. Otherwise there is no apparent specific distinction between the lots. 
Black, tinted with chocolate brown over the muscular portions, lighter 
below the head and on the edges of the fins, tentacle tipped with white. 
Station. Latitude. Longitude, Depth. Temperature. Bottom. 
3364 5° 30' N. 86° 8’ 30” W. 902 fathoms 38° F. Y1. glob. Oz. 
3363 5° 43/ N. 86° 50’ W. S78 Stay 15 Wh. glob. Oz. 
3371 5° 26’ 20” N. 86° 55/ W. “ao 0 39° F. Glob. Oz. 
3418 16° 33’ N. 99° 52’ 30” W. 660 “ 39° F. Br. S. bk. Sp. 
NEMICHTHYID. 
Serrivomer sector sp. n. 
Plate LXIITI. 
Br. r. 7; D. 159-165; A. 161-160; P. 6-7 ; C. 6. 
Slender, elongate, moderately compressed, tapering from the body to the 
snout and to the end of the tail; body cavity in the anterior third of the 
entire length. Head long, slender, deeper than wide, gradually decreas- 
ing in size from the occiput to the end of the snout, nearly one fifth of the 
total length. Snout long, acute, two fifths as long as the head, six times as 
long as the eye. Mouth wide, less than half as long as the head, extending 
little behind the orbit; maxillaries not reaching to the end of the snout by 
about one fourth of the length of the latter, slender, not expanded at 
the end. Jaws posteriorly stronger, anteriorly slender; lower jaw one half 
the orbital length longer than the upper; lower corner of the angular 
resembling a short spine. Three forms of teeth on each jaw, Plate LXIII. 
fig. 3, the outer of several rows, ‘very small, compressed, subtriangular, 
sharp-edged; the median of a single series of longer, lancet-shaped depress- 
ible teeth; and the inner of less developed, less compressed teeth, not 
