134 



PROCEEDINGS OF THE ACADEMY OF 



[March, 



and hind edge anterior to midway in head length. Mouth terminal, 

 commissure not quite extending half way to eye and inclined slightly 

 down in front. Maxillary largely concealed. Lips thin, scarcely 

 free. Teeth with nearly even cutting-edges, especially lower, and all 

 form narrow trenchant margins. Upper dental area with slight notch 

 near middle of each side, and behind this four small, erect external 

 canines each side. No lower canines. Both inner buccal folds broad. 

 Tongue large, thick, fleshy, not free. Nostrils pore-like, level with 

 upper part of eye, anterior about last third in snout length. Inter- 

 orbital slightly convex. Preopercle ridge little distinct, with number 

 of short radiating tubes. 



Gill-opening extends forward about opposite middle of eye. Gill- 



Fig. 2. — Callyodon margarita sp. nov. 



rakers 12-1-19, slender, fine, flexible, about 3 in filaments, and 

 latter about equal eye. Pseudobranchise little smaller than filaments. 

 Branchiostegals moderate. Isthmus convex. 



Scales large, cycloid, in even lengthwise series, more or less equal 

 in size, though largest on middle of sides and breast. Ventral with 

 free, pointed axillary scale about | length of fin. Fins naked, except 

 large scales covering caudal base. Largely two rows of scales on 

 cheek. L. 1. complete, high, mostly concurrent with dorsal profile, 

 and falls midway along side of caudal peduncle. Scales in 1. 1. 

 slightly smaller than those adjoining. Tubes largely simple, or with 

 only very short branch basally. 



Dorsal origin slightly before first third in space between snout tip 

 and caudal base, spines largely pungent though tips somewhat 

 flexible, and edge of fin entire. Anal spines small, somewhat flexible, 



