150 DEEP SEA FISHES. 
longest as long as the eye, five on the upper section of the first arch, twelve 
and five rudiments on the lower section. The lower two of the three small 
preopercular spines are closer together. No pseudobranchiz, <A small 
anal papilla. Five short pyloric appendices. Lower half of the pectoral 
base better developed ; the rays from this half are free, long, and slender, 
the longest reaching to the middle of the anal fin or in the young farther 
back, twice as-long as the head or more. The upper portion of the fin 
is half to two thirds as long as the head and contains thirteen to eighteen 
rays while the lower half has but nine to eleven. Each ventral has the 
appearance of a simple filamentary ray but is composed of two segmented 
unequal rays bound together; the two ventrals are close together at the 
humeral symphysis. Dorsal and anal low, with scaly bases, apparently 
continuous with the base of the caudal, which last is slender and acumin- 
ate. Dorsal origin above the axil of the pectoral, and anal origin less than 
a length of the head farther back. Scales small, thin, about ten to the 
inch on the middle of the body on a seventeen inch specimen. Individual 
described from Station 5418. 
Blackish on head, body and fins; linings of mouth, gill chamber, and 
belly black. 
On young specimens the snout is shorter, the eye larger, the body more 
slender, and the longest of the free pectoral rays is more than twice as 
long as the head. 
Station. Latitude. Longitude, Depth. Temperature. Bottom, 
3418 16% 33/ N. 99° 52’ 30” W. 660 fathoms 39°F. Br. 8. bk. Sp. 
3393 Wo Wot Ne 79° 36’ W. 1020 < 36.8° F. Gn. M. 
3394 72 CA ING 79° 35! W. 511 “s 41.8° F. Dk. en. M. 
3358 6° 30’ N. 81° 44’ W. 555 oe 40.2° F. Gn. 8. 
Dicrolene nigra sp. n. 
Plate XXXVUI. fig. 2; Plate LXXV. fig. 1, Lat. Syst. 
Br. r. 8; D. 112-119; A. 93-104; V. 2; P. 18-19+6 (rarely 7); C. 6. 
Total length of the specimen described (from station 3402) ten and one 
half inches ; head one and three fourths; caudal three fourths; longest ray 
of the pectoral two and three fourths; depth one and one half; snout to 
dorsal fin two and one fourth; and snout to anal fin three and one half. 
Body compressed, elongate, tapering to very thin and narrow near the 
caudal fin; body cavity about one third of the total length. Head short, 
not far from one sixth of the total, moderately thick and convex at the top. 
