17. PLEimONECTES. 443 



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

 line, where it terminates in two obtuse tubercles. Lateral line straight. 

 A ^ine before the anal. Brownish ; sometimes with brown spots on 

 the dorsal and anal fins. {Lilljeh.) 

 Mouth of the river Dwina. 



6. Plenronectes americanns. 



Pleuronectes, Schoepfin Schrifi. GeseUsch. Naturf. Freund. BerU viii. 



p. 148. ^ • 



Pleuronectes americanus, Walb. Art. iii. pll3. 



planus, Mitch, in Phil. 8f Lit. Trans. New York, i. p. 387. 



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



Fish. p. 295. pi. 48. fig. 154, pi. 49. fig. 158. 

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



D. m. A. 51. L. lat. 90. 



The height of the body is contained twice and a fourth 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 praeopercular limb ; 

 interorbital space flattish, covered with small, imbricate, ciliated 

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

 the former very slightly curved 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- 

 like teeth on the blind side. The width of the interorbital space is 

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

 The dorsal fiji commences before the middle of the eye, and its distance 

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

 ^t^il. The length of the pectoral is more than one-half of that of the 

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

 thirds of the length .of the head. A spine before the anat. GiU- 

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



Atlantic coasts of the United StateS". 



a-c. Adult : skins. New York. From Br. Paynell'S Collection. 



d. Adult. New York. Purchased of Mr. Brandt. 



e, f. Adult and half-grown. 



7. Pleuronectes steUatus. 



Pleuronectes stellatus, Pall. Nov. Act. Petrog. i, p. 347. tab. 9. fig. 1, 



and Zoogr. Ross.- As. iii. p. 416 ; Tiles.'^M^m. Ac. 8c. St. Peter sh. iii. 



1811, p. 248. tab. 10 ; PicAards. Faun. JBor.-Amer. Fish, p. 257, and 



Voy. Herald, Fish. p. 164. pi. B2. 



Platichthys rugosus, Girard in W. S. Padf. R. R. Exped. Fish, p. 148. 



D. 54-59. A. 42. Yert. 12/23. 



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



