606 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY - IV. 



32S.-CALLIODON Grouow. 



(Grouow; Blorh iV Schneider, Syst. Ichth. 1801, 312: type Calliodon H neat us Bloch & 

 Schneider.) 



Body moderately elongate, compressed, covered with large scales. 

 Lateral Hue complete, its branching tubes covering the surface of its 

 scales. Teeth at base coalescent with the bony jaw, the tips free; no 

 median division in either jaw; upper jaw with canine-like teeth in front; 

 posterior canines present; lower phiryngeal bone large, broader than 

 long; the teeth coalescing, forming a pavement. One row of large 

 scales on the cheek. Dorsal spines flexible. D. IX, 9 or 10; A. 11,8; 

 scales about 2-24-G. Tropical seas. (xaAO?, beautiful; 6da>-^ tooth.) 



953. C. iistus Cuv. & Val. 



Keddish in spirits, nearly plain, a black spot behind the first dorsal 

 spine. Body moderately elongated, compressed. Head rather pointed. 

 Upper jaw with canines in front, free at their tips, coalescent below; 

 no smaller teeth behind these; posterior canine well developed, directed 

 outward and partly backward; between the anterior and posterior 

 canines a series of small teeth behind the sharp edge of the bone. 

 Lower jaw with a series of close-set, even, bluntish teeth, coalescing 

 below; upper lip double for its whole length, covering all of the upper 

 jaw except the tips of the teeth. Opercles with two rows of scales, 

 Jarger than those on the cheeks. Dorsal spines moderately high, very 

 slender; pectoral short, rounded; caudal truncate. D. IX, 0; A. II, 8; 

 scales li-24-6. West Indies, occasional northward. This description 

 taken from a specimen obtained at Charleston by Mr. K. E. Earll. 



(Cuv. & Val. xiv, 283, 183!); Ciinth.-r, iv, 214.) 



323. IIEHXISTOHA Swainson. 



Parrot-fishes. 



Pscndoscarns Blceki r. 

 (Swainson, Class'n. Aiiim. ii. IK.'.I, '.Jo: type Srunix JH i><> llmni'lt.) 



I'-ody oblong, more or less compressed, covered with very large scales. 

 Lateral line continuous. Lower jaw included ; teeth in each jaw sol- 

 dered tog tlier, forming a continuous plate, divided by a median suture 

 a> in Tt'h-otlon ; the. separate teeth traceable by serrations on the edge 

 and by reticulated markings on the anterior surface; none of them 

 exserted; posterior canines small or wanting; lower pharyngeal very 

 large, longer than broad, the teeth paved. Scales on the cheek in 

 more than one series. Dorsal spines flexible; dorsal IX, 10, or X, 9; 



