1903.] NATURAL SCIENCES OF PHILADELPHIA. 745 



42 111 a lateral series to base of caudal; about 15 scales in an oblique 

 series from origin of spinous dorsal to middle of belly; 24 scales before 

 spinous dorsal; width of head If in its length; depth of head H; 

 snout 4; eye 3^; maxillary 3^; interorbital space 2-\; second dorsal 

 spine If; first dorsal ray 2; third anal spine 2f ; upper caudal lobe l^; 

 least depth of caudal peduncle 2^; pectoral If; ventral If. 



Body fusiform, compressed, greatest depth about middle of length 

 and profiles more or less evenly convex. Caudal peduncle compressed, 

 and its least depth about If in its length. 



Head robust, a little constricted below, and profiles evenly con- 

 vex. Snout broad, a little convex above, and upper jaw hardly 

 l^rnduced. Eye anterior with well developed adipose eyelids. Mouth 

 a little inferior, corner not quite reaching opposite anterior rim of 

 orbit. Mandibular angle a right one, and symphysis form a process 

 that fits in a depression of upper jaw. Teeth rather large, uniserial, 

 ciliiform, and present in both jaws. Tongue fleshy, not free. Max- 

 illary exposed, and reaching opposite front rim of orbit. Lower edge 

 of preorbital denticulate. Anterior nostril with a small cutaneous 

 rim, near edge of snout, and space between it and posterior much 

 greater than space between latter and front of eye. Posterior nostril 

 rather large. Interorbital space broad and slightly convex. 



Gill-opening extending forward till about opposite middle of orbit. 

 Rakers about 50?, slender, fine, equal to about f length of longest fila- 

 ments, which are numerous and also equal to about | of orbital diam- 

 eter. Pseudobranchise about half of orbital diameter. Isthmus 

 narrow, with a groove. 



Stomach gizzard-like, muscular, and about size of eye. Intestine 

 long, with many convolutions. Peritoneum blackish. Anus close 

 in front of anal fin. 



Scales a little small, and in more or less even longitudinal series. 

 Head scaly. Scales extending down along edge of snout small. A 

 slender pointed scaly flap along base of spinous dorsal about equal 

 in length to f length of first spine. Scaly flap at axil of pectoral a 

 little less than half length that of fin. Ventral with a similar scaly flap, 

 and a median one between bases of each of these fins about f their 

 length. Greater portions of soft dorsal, anal, and caudal covered with 

 minute scales, those at their bases larger. 



Spinous dorsal inserted a little nearer tip of snout than base of caudal, 

 second spine longest, and fourth shortest. Soft dorsal inserted nearer 

 origin of spinous than base of caudal, and first ray longest, margin of 

 fin a little concave. Anal similar to soft dorsal, spines slender, grad- 



