NATURAL SCIENCES OF PHILADELPHIA. 279 



Doubtful Synonymy. 



Polygnernus virinicus Linn., Systema Naturae, ed. x. torn. i. p. 317. 



Linn., Systema Naturae, ed. xii. torn. i. p. 521. 

 Le Mango Daubenton et Haily, Encyclopedic Methodique, torn. iii. pp. 244, 314. 

 Le Mango (P. virginicus) Bonnalerre, Tableau Encyclopedique et Methodique, 



&c, Ichthyologie, p. 182. 

 Polyueinus virginicus Linn., Systema Naturae, Gmelin ed. (torn. i. pt. iii.) 



p. 1400. 1788. 

 Artedi, Genera Piscium, Walbaum ed. p. 630. 1792. 

 " " Block., Syst. Ichthyologiae, Schneider ed. p. 19. 1801. 



Le Polyneme mango {Lacepede Histoire Naturelle des Poissons, torn. v. pp. 

 Polynemus mango \ 413, 417, 418. 1803. 

 Virginian Polyneme Skaiv, General Zoology, vol. v. p. 156. 

 D. VIII. 1, 13. A. II. 15. 



The lateral line runs through seventy scales ; above it there are seven 

 rows and beneath are fourteen. There are seven pectoral filaments of moder- 

 ate length, and nearly coterminal with the pectoral fins. The villiform teeth 

 of the palatine and pterygoid bones form a narrow band. The body is uniform 

 silvery. The margins of the pectoral fins and top of the first dorsal are black, 

 and the rest more or less minutely dotted with black, (Gnnther.) 



This species has quite a large geographical range, having been discovered 

 on the southern coast of Brazil (at Rio Janeiro) and at the West Indian 

 island of Jamaica. It is perhaps also found on the coast of the Southern 

 United States. Its radial formula better agrees with that assigned by Lin- 

 naeus to his Polynemus virginicus than does the Polynemus Plumieri. It does 

 not, howeve r, appear to be admissible to retain the Linnaean name for the spe- 

 cies, as there is much uncertainty about it, and the description of Linnaeus 

 is incorrect, a pointed tail being assigned to it. Such a character is almost 

 impossible in a fish having the form of a Polynemus. 



Trichidiox Plumieki Gill. 

 Synonymy. 

 Piracoaba Marcgrave, Historia Naturalis Brasiliae, p. 176. 



" Willoughby, Hist. Piscium. (Lib. iv.) p. 204, tab. N. 13, f. 3. 1686. 



Trichidion Klein, Historia Piscium Naturalis promovendae Missus quintus, 



p. 29. 1749. 

 Polynemus paradiseus ) Block, Naturgeschichte der AuslJindischen Fische, 

 Der Paradisfisch ) torn. xii. p. 28, taf. ccccii. (excl. syn.) 1793. 



Polynemus paradiseus Block, Systema Ichthyologiae, Schneider ed. p. 18. 

 Polydactylus Plumieri Lac, Hist. Nat. des Poissons, torn. v. p. 419. 

 Paradise Polyneme (part) Shaw, General Zoology, vol. iv. p. 147, pi. 118, 

 Plunder's Polyneme Shaw, op. cit. vol. iv. p. 157. 1804. 

 Polynemus americanus Cuv. et Vol., Hist. Nat. des Poissons, torn. iii. p. 393. 



Storer, Synopsis of the fishes of North America, p. , 

 t'6. in Memoirs of the American Academy of 

 Arts and Sciences, vol. ii. p. 300. 1846. 

 Schomburgk, History of Barbados, p. 697. 1848. 

 Hill, Catalogue of the Fish of Jamaica. 

 " Guickenot, Hist, physique politique et Naturelle de 



Pile de Cuba, p. 44. 1853. 

 Polynemus Plumieri Guntker, Catalogue of the Acanthopterygian Fishes, 



vol. ii. p. 321. 

 Trichidion Plumieri Gill, Catalogue of the Fishes of North America. 

 D. VIII. I. 12. A. II. 1213. 



The lateral line runs through about sixty scales or less ; above it, there are 

 six rows, and beneath, ten. 



1861.] 



