162 BULLETIN OF THE 



upon the anterior portion of the operculum, extending backward nearly to 

 its posterior edge. 



The nostrils are small, the anterior as close to the snout as the posterior 

 ones are to the eyes. No apparent cirri. The scales are minute ; the lateral 

 line is obsolete on the last fourth of the length of the body. 



The dorsal origin is behind that of the ventral and pe(;toral ; its distance 

 from the snout (24 mm.) is contained 3§ times in length of the body. The 

 height of the fin is moderate; the longest ray is contained about 3 times in 

 the length of the head. 



The anal origin is under the eighteenth ray of the dorsal ; the height of the 

 fin about equals that of the dorsal. The vertical fins are not connate with the 

 caudal, which consists of 12 or 13 very slender rays, its length nearly equal 

 to half that of head. 



The pectoral with a broad base, close to gill-opening, irs length nearly § that 

 of the head. 



The ventral a single bifid ray, inserted slightly in advance of the vertical 

 through the base of the pectorals, and not far from the humeral symphysis. 

 It reaches nearly half-way to the vent, the distance of which from the origin 

 of the ventral is equal to the length of the head. 



Color yellowish brown. 



Neobythites marginatus, n. sp. \/ 



The type is from " Blake " Station lxxix., off Barbadoes, 209 fathoms. 



Body compressed, somewhat elongate ; its height (18 mm.) contained 5 J times 

 in total length, and less than the length of the head. Interorbital area convex, 

 its width (5^ ram.) greater than the diameter of the circular eye, which is 4^ mm. 

 The length of the head (22 mm.) is contained 4§ times in that of the body. 

 Mouth large, the maxilla extending considerably behind vertical through pos- 

 terior margin of orbit ; its length equals half that of the head. The length 

 of the mandible (13 mm.) is slightly more than § of height of body. 



The teeth as in N. gillii. 



Gill-rakers slightly longer than half the diameter of the eye, 7 and 3 rudi- 

 ments below the angle of the anterior arch. Pseudobranchiae absent. Gill- 

 openings as in N. rohustxis. A long flat spine upon the upper edge of the 

 operculum, extending back nearly to its margin. Two short flat spines upon 

 the angle of the preoperculum. Nostrils as in N. gillii. 



The scales small, very closely imbricated, in about 123 rows, 7 above and 29 

 below the lateral line. 



The lateral line obsolete in its posterior half. 



The dorsal is composed of 101 rays ; its distance from the snout is contained 

 4 times in total length. 



The anal originates under the fourteenth doi'sal ray at a distance from the 

 snout contained more than 2§ times in total length. 



