17. PLEIIBONEOTES. 443 



obtuse behind the eyes and continued on to the origin of the hiteral 

 line, where it terminates in two obtuse tubercles. Lateral line sti-aight. 

 A spine before the anal. Erownish ; sometimes with brown spots on 

 the dorsal and anal fins. (LiUJeb.) 

 Mouth of the river Dwina. 



6. Pleuronectes americanus. 



Pleuronectes, Schoepfin Schrift. Gesellsch. Naturf. Freund. Bed. viii. 



p. 148. 

 Pleui-onectes americanus, Walh. Art, iii. p. 113. 



planus, 3Iitch. in Phil. ^- Lit. Trans. New York, i. p. 387. 



Platessa plana, Storer, Fish. Massach. p. 140 ; Dekay, Neto York Faun. 



Fi>:h. p. 295. pi. 48. fig. 154, pi. 49. fig. 158. 

 pusilla, Dekay, I. c. p. 296. pi. 47. fig. 153. 



D. 66. A. 51. L. lat. 90. 



The height of the body is contained twice and a foui-th or twice 

 and a half in the total length (without caudal), the length of the head 

 four times and a third. The greatest depth between the anal fin and 

 the straight portion of the lateral line is equal to, or rather less than, 

 the length of the head. Scales small, -with the margins ciliated ; 

 nine series of scales between the eye and the pra;opercidar limb ; 

 interorbital space flattish, covered with small, imbricate, ciliated 

 scales. Lateral line and base of the vertical fins without tubercles ; 

 the former very sUghtly ciu-ved above the pectoral ; most of the dorsal 

 and anal rays with a series of minute rough scales. Snout as long 

 as the eye, the diameter of which is one-sixth of the length of the 

 head. Lower jaw prominent ; maxillary somewhat longer than the 

 eye. Upper jaw with a series of about twelve closely-set incisor- 

 lie teeth on the bUnd side. The width of the interorbital S2)ace is 

 one-half of the vertical diameter of the eye ; eyes on the same level. 

 The dorsal fin commences before the middle of the eye, and its chstance 

 from the caudal is much less than the depth of the free portion of the 

 tail. The length of the pectoral is more than one-half of that of the 

 head. The dorsal rays about the forty-fourth are the longest, two- 

 thirds of the length of the head. A spine before the anal. GUI- 

 rakers short, triangular, compressed, widely set. Greyish -brown. 



Atlantic coasts of the United States. 



a-c. Adidt : skins. New York. From Dr. ParneU's Collection. 

 <l. Adult. New York. Purchased of Mr. Brandt. 

 e,f. Adult and half- grown. 



7. Pleuronectes steUatus. 



Plourouoctes steUatus, Pal/. Nov. Art. Pcfrop. i. p. 347. tab. 9. fig. 1, 



and Zooyr. Rnss.-As. iii. p. 41G; Tiles. Mini. Ac. Sc. Si. Petersh. iii. 



1811, p.'248. tab. 10; liichards. Faun. Bor.-Amer. Fish. p. 257, and 



Voy. Herald, Fish. p. 104. pi. 32. 



Platichthys rugosus, Girard in U. S. Pacif. R. R. Exped. Fish. p. 148. 



i). 54-59. A. 42. Vert. 12 '23. 



The height of the body is somewhat more than one-half of the 



