476 PLEUKONECTID^. 



upper eye is in advance of the lower. The rays of the vertical fins 

 are branched ; the longest dorsal rays are two-thirds of the length 

 of the head. Caudal rounded, as long as the head. Brownish-olive, 

 with six pairs of deep-brown vertical lines extending on the dorsal 

 and anal fins. 

 Gulf of Fonseca. 



a. Fifty-one lines long. Presented by Sir J. Richardson. 



29. Solea acMrus. 



Pleuronectes achirus, L. Syst. Nat. 10th edit. i. p. 268. 



lineatus, L. Syst. Nat. 12th edit. i. p. 458; Bl. Schn. p. 160; 



Schoepf, Schrift. Oeselkch. Nattirf. Freund. Berl. viii. p. 149. 

 Achirus fasciatus, Lacep. iv. pp. 669, 662. 

 Pleuronectes mollis, Mitch, in Lit. 8f Phil. Trans. New York, i. p. 388. 



pi. 2. fig. 4. 

 Achirus lineatus, Cuv. Rigne Anim. 

 moUis, Storer, Syn. Fish. N. A. p. 228, and Fish. Massach. p. 149 ; 



Dekay, New York Fau7ia, Fish. p. 303. pi. 49. fig. 159. 

 Grammichthys lineatus, Kaup in Wiegm, Arch. 1858, p. 101. 



B. 5. D. 54-55. A. 40-42. L. lat. 72-77. Vert. 10/19. 



Pectorals none. The right ventral fin is composed of four rays, 

 which are continuous with the anal. Scales on the nape and on the 

 chin three or four times as large as those on the body. Nostril of 

 the blind side small, surrounded by a broad wreath of fringes ; the 

 right lower lip fringed. The height of the body is contained once 

 and four-fifths in the total length (without caudal). The width of 

 the interorbital space equals the diameter of the eye ; the upper eye 

 slightly in advance of the lower. Blackish-brown, with about eight 

 black vertical lines ; the left side spotted with brown. 



Atlantic coasts of the United States. 



a, h. Adult. New York. 



c. Half-grown. North America. Presented by the Smithsonian 



Institution. 



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



A skin of an adult specimen belonging to Linne's own collection, 

 and named by himself Pleuronectes lineatus, is in the possession of 

 the linnean Society of London, 



30. Solea jenynsii. 



Achirus lineatus, D' Orb. Voy. Am4r. Merid. Poiss. pi. 16. fig. 2 ; Jeny/is, 

 Voy. Beagle, Fish. p. 139. 



Pectorals none. The right ventral is composed of five rays, which 

 are continuous with the anal. Two long barbels at the extremity of 

 the upper jaw ; the lower jaw prominent. The height of the body is 

 contained once and two-thirds in the total length (without caudal) ; 

 the upper eye is slightly in advance of the lower. Body with vertical 

 black lines crossing the lateral line. 



Rio Plata. 



