228 FISHES OF PENSACOLA, FLORIDA. 



bi. Lateral teeth of lower .jaw subequal, arranged in two rows whicliarenot parallel: 

 profile sligbtly convex above eye, thence somewhat concave; diatance 

 from eye to angle of mouth nearly 3 times diameter of eye ; snout (axially ) 



2^ in head ' USTUS. 



aa. Posterior canine single; teeth otherwise essentially as in C. ustus ; snout rather 

 sharp, 2f in head ; front canines small ; lower lip not double for its whole 



length AUKOPUNCTATUS. 



aaa. Posterior canines, none; lateral teeth in each jaw subequal, those of the lower 

 jaw larger than those of the upper. 

 c. (Teeth of outer (anterior) series in upper jaw numerous, large, divergent, 

 canine-like, free to their bases; lower jaw with numerous canines; body 

 elongate, the depth 4 in length ; snout pointed, 3 in head ; eye large, 

 protile uot steep, gently arched ; diameter of eye greater than its distance 

 from angle of mouth, color chiefly rosy.) (Cope.*) RosEUS. 



cc. Teeth of outer (anterior) series in upper jaw few, small, non-divergent, uot canine- 

 like, and scarcely differentiated ; lower jaw without enlarged teeth ; body 

 moderately elongate, the depth Z\ in length ; snout rather sharp, 2f in 

 head; profile gently curved, not steep; diameter of eye, H in distance 

 from eye to angle of mouth; color chiefly olive gray Beryllinus. 



6. Prionotus stearnsi Jordan & Swain. 



Adult example. Head 2| in length (3^ with caudal); depth 4^ (5^^). 

 Dor&al IX, 12 ; anal 12 ; scales in transverse series about 50 ; pores in 

 lateral line about 52 ; length of specimen, 14J inches. 



Body rather robust, formed much as in P. tribulus; width of nape be- 

 tween occipital spines uot quite one-fifth the length of the head. Head 

 very large, broad, and unusually smooth, the profile, except for the 

 prominence of the orbital region, forming a very gentle and somewhat 

 regular arch. Snout very broad, truncate at tip, its breadth at tip 3| 

 in head, its length 2f ; edge of snout granular, without any spines. 



Surface of all bones of head very finely, evenly, and regularly striated, 

 the striae much finer than in P. tribulus, their granulations all minute. 



Mouth wide, the maxillary reaching front of eye, its length about 2J 

 in head. Band of palatine teeth well developed. Eye large, placed high, 

 its diameter 5^ in head. No cirri. luterorbital space about as in P. 

 tribulus, rather broad and moderately concave, wider than the eye, and 

 about 5 in head. 



Bone at anterior i)ortion of orbital rim very prominent, serrulate, its 

 principal ridge ending in a stout, blunt spine. Supraorbital rim little 

 prominent and without spine. Nocross-grooveontopofhead. A slight, 

 bluntish spine behind eye. No spines on temporal ridge. Outer pair of 

 occipital spines short, strong, compressed, not quite reaching front of 

 dorsal. Inner pair and their ridges obsolete. Opercular and preoper- 

 cular spines short, the latter with no smaller one at its base. Upper 

 opercular spine very weak. Humeral spine moderate. Membranaceous 

 flap of opercle with about five rows of scales. No spine on cheek-bone. 



Gill-rakers short and few, little longer than in P. ophryas, the longest 

 about one-third interorbital width, about half longer than the inter- 



*CryjitotQmiis rosfus Cope, Tians. Am. Phil. Soc, 1871, 462, 



