2. POGONiAS. 269 



formed by three lamellae ; tliey have no posterior process, and are 

 divergent anteriorly. 



The lower portion of the skull is globular, depressed, with a groove 

 along the medial Kne. There are ten abdominal and fifteen caudal 

 vertebrce, the length of the former portion of the vertebral column 

 being to that of the latter as 1:1-8. The three anterior vertebrae 

 have a longitudinal groove, formed by a pair of prominent ridges ; 

 the fourth is pro\dded with a protuberance for the attachjnent of the 

 air-bladder. The first interhsemal spine is strong, and its length 

 equals that of the second vertebra to the ninth. 



3. Larimus fasciatus. 

 Holbr. Ichtk. S. Carol, p. 153. pi. 22. f. 1. 



D. 10 I ^. A. |. Cffic. pylor. 12. 



The height of the body is 3|- in the total length, the length of 

 the head four times. The snout is shorter than the eye ; the lower 

 jaw projects beyond the upper. AU the teeth viUiform. Caudalis 

 rounded ; the second anal spine shorter than the fii-st ray. Seven 

 dusky vertical cross-bands descend from the back. [Holbr.) 



Fresh waters of South Carolina. 



4. Larimus dentex. 



Corvina dentex, Cuv. ^ Val. v. p. 139. pi. 109. 



D. 10|5^^. A.|. C^cpylor. 7. 



The height of the body is 4| in the total length, the length of the 

 head 2\ ; the diameter of the eye is 3| in the latter. The lower jaw 

 scarcely longer than the upper ; an external series of pointed teeth 

 in both the jaws, and one or two canine-like in the lower. Prae- 

 operculimi minutely crenulated. Caudalis truncated ; the second 

 anal spine three-quarters the length of the first ray, but rather 

 feeble. The scales with specks, formed by minute brown dots. 



Caribbean Sea. 



a. Half-grown. From the Collection of the Zoological Society. 



b. Half-grown. From the Haslar Collection. 



c. Half-grown : skin. Jamaica. From Dr. Pamell's Collection. 



d. Fine specimen. Trinidad. Presented by J. B. llichardson, Esq. 



e. ? Adidt : very bad state ; has been in chloride of zinc. South 



America. From Mr. Bridge's Collection. 



2. POGONIAS. 



Pogonias, Cuv. H^gne Anim. ; Cuv. 6r Val. v. p. 196. 



Body oblong ; muzzle convex, with the upper jaw overlai)i)ing the 

 lower. Pharyngeal teeth pavemcnt-Ukc. Mandibula with many 

 barbels. Two dorsals, the first with ten stout spines ; the anal fin 



