60 DEEP SEA FISHES. 



Caulolepis subulidens sp. n. 



Plate B; Plate XII., Anat. ; Plate LXXII fig. 1, Lat. Syst. ■ 



Br. r. 8; D. 18; A. 8; V. 7 ; P. 15; LI. 78 scales, 13 disks; Ltr. 11 + 

 36 ca. ; Vert. 27. 



Greatly compressed, high and blunt forward, tapering rapidly from the 

 head to the tail. Head narrow, its width nearly half of its length, much 

 deeper than long, the depth being nearly one half and the length about 

 three eighths of the distance from the snout to the base of the caudal; 

 crown twice as wide as the eye ; skull deeply excavated on the top ; sides 

 vertical. Snout short, longer than the eye, most prominent in the longest 

 pair of the upper teeth, very steep below the chin and forward of the eyes. 

 Mouth oblique, very wide; maxillary nearly as long as the head, hidden in 

 the anterior two thirds of the length, broadened and rounded posteriorly ; 

 premaxillas forming the upper border of the mouth, with teeth-like granules 

 on the lower edges, outside of the series of long teeth ; mandibles much 

 broadened in the middle, two fifths as broad as long. Teeth long, slender, 

 awl-shaped, more or less hooked; each upper jaw with three teeth, of which 

 the anterior is hardly as long as the eye and passes down in front of the 

 lower jaw when the mouth is closed, and the second is less than half the 

 length of the first or a little shorter than the third ; each lower jaw with 

 four teeth all closing within the mouth, the anterior nearly one and one half 

 times the length of the eye, the third half as long as the first and longer 

 than the second, which last is longer than the fourth. On the upper jaw the 

 second and third teeth are directed obliquely backward and inward, while all 

 of the other teeth are nearly vertical. The lower forward extremity of 

 each of a couple of the branchial arches bears an irregular bunch of smaller 

 teeth. A vertical band of half a dozen small teeth on the forward end of 

 each palatine ; vomer and tongue toothless. Skull bones thin and fragile, 

 rough with deep excavations, ridges, grooves, and granules, as shown on the 

 figures. Nostrils small, nearer to the eye than to the end of the snout; 

 posterior vertically oblong ; anterior smaller, rounded. Eye medium, little 

 shorter than the snout, five elevenths of the length of the head. Gill cover 

 indented in front of the pectoral, operculum scalloped. Gill openings very 

 wide ; membranes hardly united, free from the isthmus. Four gills ; arches 

 long, slender ; lamellae very short ; rakers short, spine-like, nine plus thir- 

 teen. Pseudobranchia) small, with fourteen or fifteen short lamelkc. A 



