172 "ENDEAVOUR" SCIENTIFIC RESULTS. 



long as its distance from the vent. Depth (28) 2-6, eye 

 (13-5) 5-4, snout (34) 2-1 in the head. Preoral portion 

 of the snout (14) 2-4 in its length; interorbital width 

 (6) 2-1 in the eye. Pectoral fin (55) 1-3, caudal fin 

 (45) 1-6 in the head. Second dorsal ray (33) 2-2, fourth 

 anal ray (22) 3-3, and ventral fin (29) 2-5 in the head. 



Body elongate, tapering to a very slender tail; the 

 profile is convex on the nape. Snout conical, rounded in 

 a horizontal plane; it is formed of flabby integument 

 supported by cartilages which can be felt through the 

 skin. Interorbital space flat. Nostrils close together, 

 situated a little in front of the eye, the anterior with a 

 small dermal lobe. Eye large, covered by membrane. 

 A large channel extends backward from each side of 

 the snout, across the cheek to the preoperculum, and a 

 small one on each side of the mandible to the operculum. 

 Opercular bones membrauaceous, projecting backward 

 beyond the gill-covers. Mucigerous canals cross the nape 

 and postocular regions. Maxillary not quite reaching 

 the vertical of the anterior border of the eye, and 

 terminating in a small spine; lower jaw closing within 

 the upper. Bands of villiform teeth on the jaws, palate, 

 and tongue. Gill-openings extending forward to beknv 

 the front margin of the eye, their membranes free from 

 the isthmus. Seventeen gill-rakers on the lower limb of 

 the first arch, which are slender posteriorly, and become 

 shorter anteriorly; those at the angle are about one-third 

 as long as the eye. Four gills, an opening behind the last. 



Thin cycloid scales cover the upper surface of the 

 head and extend far forward on the snout; they were 

 also present on the cheeks and opercles. Very few scales 

 remain upon the body, though the scale-pits are distinct; 

 such as are present are thin and concentrically striated. 

 The scales of the lateral line were probably not enlarged. 

 Some cycloid scales remain on the dorsal fin and anterior 

 portion of the anal. 



Origin of the dorsal fin nearer the vent than the 

 hinder margin of the eye; its first ray is simple, the 

 others are branched, and the margin is rounded. Pectoral 

 fin inserted high up on the side, with a narrow base ; the 

 fourth ray is longest, and reaches beyond the vertical 

 of the origin of the veutrals, but not so far as that of 

 the dorsal fin ; the median rays are branched, and the 

 lower ones are very small. Yentrals inserted well in 



