MUSEUM OF COMPARATIVE ZOOLOGY. 217 



There is no adipose dorsal ; if ever present, it was obliterated before the 

 specimen came into our possession. 



The anal fin contains eleven rays, and is inserted considerably behind the 

 vertical from the termination of the dorsal, — at a distance equal to the horizon- 

 tal diameter of the eye ; the length of its base is equal to half that of the dor- 

 sal, the length of its longest ray (the third) equal to that of the eighth of the 

 dorsal. 



The caudal is slightly forked, its middle rays two thirds as long as those in 

 the upper lobe, and about equal to the seventh dorsal ray. 



The pectoral fin consists of fifteen rays, is inserted under the fourth scale of 

 the lateral line, and at a distance in front of the dorsal equal to half the great- 

 est height of the body. Its length is equal to that of the lower jaw, and the 

 seventh ray is prolonged to a length equal to that of the head, its tip extending 

 to the perpendicular from the twelfth dorsal ray. 



The ventral is composed of eight rays, and its base is almost entirely in 

 advance of the perpendicular from the origin of the dorsal : its length equals 

 half that of the head. The two ventrals are far apart. 



Eadial formula : B. 10 (?) ; D. 17 ; A. 11 ; C. 19 ; P. 15 ; A. 8. Scales 

 8, 78, 8. 



Color brownish, the inside of the branchiostegal flap bluish black. 



A single specimen, about two feet in total length, a femak', full of nearly 

 mature eggs, was taken at a depth of 647 fathoms, at iStation 325, in Lat. 

 33° 35' 20" N., Long. 76° W. 



MEASUREMENTS. 



Millimeters. 



Length to base of caudal ....... 540 



Length to end of middle caudal rays .... 610 



Body. Greatest height 76 



Greatest width . 58 



Height at ventrals ....... 76 



Least height of tail ....... 25 



Head. Greatest length 137 



Greatest width 62 



Width of interorbital area 27 



Length of snout 40 



Length of maxillary 89 



Length of mandible 108 



Diameter of orbit 20 



Dorsal. Distance from snout 191 



Length of base 171 



Length of first ray 5 



Length of longest ray (4th) 78 



Anal. Distance from snout 380 



Length of base 85 



Length of longest rav ...... 56 



