REPORT ON THE DEEP-SEA FISHES. 93 



small. Mouth comparatively narrow, only reaching Ijeyond the anterior margin of the 

 eye ; barbel much shorter than the eye. Caudal peduncle rather slender, its depth 

 being rather more than one-half of the distance between dorsal and caudal fins. Scales 

 very small, rather irregularly arranged, about eighteen longitudinal series between the 

 first dorsal fin and the lateral line. The long dorsal ray is strongly compressed, broad, 

 shaped like a blade of grass, and extending backwards to the posterior third of the 

 dorsal fin. It is so in three male specimens, but in a female the ray is much less 

 developed, scarcely extending beyond the anterior third of the dorsal fin. Middle of 

 the anal fin strongly depressed ; caudal fin subtruncated ; pectoral as long as the head 

 without snout, much shorter than the filamentous ventral fin, which, however, does not 

 reach the vent. 



Brownish, fins blackish, the posterior dorsal and anal rays whitish ; cavities of the 

 mouth, gills, and abdomen black. 



Habitat. — Four specimens, from 10 to 14 inches long, were obtained off" the mouth of 

 the Rio Plata, at Station 320, in GOO fathoms. 



A ntimora. 



Antimora, Giuitli., Ann. ami Mag. Nat. Hist., 1878, vol. ii. p. 18. 



Body elongate, covered with small scales. Upper part of the snout produced into a 

 pointed projection. A separate caudal ; two dorsal fins, the first with four or five rays ; 

 one anal, with a deep depression along the middle. Veutrals narrow, composed of six 

 rays. Jaws with bands of villiform teeth ; vomerine teeth in a small roundish patch ; 

 none on the palatine bones. Muciferous channels on the side of the head well 

 developed ; bones of the cranium wanting in solidity. Vent at the end of the abdominal 

 cavity. Chin witli a barbel. Branchiostegals seven; pseudobranchise none. Pyloric 

 appendages long, in moderate number. 



Deep-sea fishes descending to greater depths than the allied genera of Salilota and 

 Halo'porphyrus. 



Antimora rostrata (PI. XVI. fig. A). 



Hahrpcyrphijrus rostmtiis, Giinth., Ann. and Mag. Nat Hist., 1878, vol. ii. p. 18. 

 B. 7. D. 4 I 51-56. A. 38-39. V. G. L. lat. 140. L. transv. ca. lO/x. Ccec.pyl. 13. 



This species is readily distinguished by the peculiarly produced snout, which forms a 

 short, triangular, pointed lamina, sharply keeled on the sides, and overhanging the cleft 

 of the mouth. 



The head is rather short, broad posteriorly, half as long as the distance between 



