BASSOZETUS NASUS. 159 



liimellfe very short. Six gill rakers and one rudiment on upper section of 

 first gill arch, and eigliteon rakers and six rudinionts on the lower section ; 

 longest raker as long as the snout, slender. Gill membranes not united, 

 not attached to the isthmus. Dorsal fin and anal continuous with the 

 caudal, low. Dorsal origin above the pectoral base ; anal origin distant 

 from the snout two lengths of the head. Pectorals moderate, narrow, in 

 the lower half of the depth of the body, three fourths as long as the head or 

 longer, reaching to the vent or backward. Yentrals filamentary, of a sino-le 

 ray, half as long as the head, inserted immediately behind the humeral 

 symphysis, bases close together. Caudal narrow, extending beyond dorsal 

 and anal, pointed. Scales medium, thin, with fine concentric stride, smooth 

 to the touch, imbricated; those on head and snout smaller and irregular; 

 seven large ones between the lateral line and the small ones on the base of 

 the dorsal ; about one hundred and ten between head and caudal. Lateral 

 line becoming indistinct not fur backward of the anal origin, rising little 

 behind the opercle. A prominent anal papilla. Six short pyloric ca3ca. 

 Skull with a prominent spine-like internarial keel, another in the interorbital 

 region, and a third on the occipital crest. The ridge between the nostrils is 

 not a spine, as in Lepophidium. 



Blackish over body and head, also inside of mouth and body chambers. 



Length eight and one half inches. 



station. Latitude. Longitude. Depth. Tpmperature. Bottom. 



3393 7° 15' N. 79° 36' W. 1020 fathoms 36.8° F. Gii. M. 



Bassozetus nasus sp. n. 



Plate LXXVIL and Plate LXXVIIL, Lat. S't/st., ^''erves, and Brain. 



Br. r. 8 (8-7) ; D. 126-L32 ; A. 105-109 ; V. 1 ; P. 23 ; C. 9 ; LI. 156 ca. 



Total length eleven, liead and body cavity three and one eighth, head 

 one and five eighths, and snout to dorsal fin one and one half inches. Body 

 compressed ; head thick, depressed anteriorly ; caudal region slender, taper- 

 ing regularly, threadlike toward the end. Greatest depth two thirds of the 

 length of the head ; outline highest and arched on the nape. Entire head 

 covered with scales ; skull with a high internarial ridge, .and a ridge near 

 each side of the interorbital space, separated by a deep concavity and 

 diverging a little at each side of a similar cavity on the parietal region ; 

 muciferous cavities large and deep. Snout swollen, as broad as the orbital 



