ACANTHOPTERYGIANS : TRIGLID^. 329 



nearly a square head, and dense teeth in the jaws and 

 before the vomer. The species are numerous and ma- 

 rine. 



The Red Gurnard, T. cuculns, Linn., of the Atlantic, is 

 from eight to ten inches long, and of a red color. 



The Genus Prionotus has very large pectorals, and a 

 belt of dense teeth on the palatines. 



The Sea Robin, or Grunter, P. lineatus, Dekay, is from 

 twelve to eighteen inches Fig. i 95 . 



long, color dark - brown 

 above, sides and abdo- 

 men cream-colored ; and 

 there is a broad, reddish 

 stripe below the lateral 



1jng Sea Robin, P. lineatus, Dekay. 



The Web-fingered Gurnard, P. palmipes, Storer, of the 

 Atlantic, is from fifteen to eighteen inches long, with the 

 pectoral processes dilated at their extremities. 



The Genus Dactylopterus is characterized by pectoral 

 fins, which are excessively developed, and composed of 

 two parts, forming a large fin, which, like a wing, sup- 

 ports the fish in the air for a short time. 



The Sea-Swallow, D. volitans, Cuv., of the Atlantic 

 coast of America, is six to fourteen inches long. 



The Genus Uranidea has the head much depressed, 

 second dorsal higher than the first, and only one small 

 spine at the angle of the preoperculum. The species 

 inhabit fresh water. 



The River Bull-head, or Miller's Thumb, U. gracilis, 

 Putnam, of the Northern States, is only two or three 

 inches long. 



The Genus Cottus has spines upon each of the oper- 

 cular bones, and the head armed with spines. The spe- 

 cies are marine. 



The Greenland Sculpin, C. grccnlandicus, C. & V., of 



