150 DEEP SEA FISHES. 



longest as long as tlie eye, five on the npper section of the first arch, twelve 

 and five riiduiients on the lower section. The lower two of the three small 

 preopercular spines are closer together. No pseudobranchia?. 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 tlie 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 3418. 



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 l)ody more 

 slender, and the longest of the free pectoral rays is more than twice as 

 lontf as the head. 



Dicrolene nigra sp. n. 



riatr, XXXVII. fig. 2; Plate LXXV.firj. 1, Lat. Sijst. 



Br. r. 8; D. 112-119; A. 93-104; V. 2 ; P. 18-19 + C (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 my 

 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. 



