54 



CLASS. TROPIOPODA. 



ORDER. BIMUSCULOSA. 



FAMILY TRIGONACEA. 



GENUS TRIGONIA. Bruguiere. 



1478 alaeformis, 



1479 pectinata, 



1480 " var. 



Sowb., 515 France, 

 Lam., 514 N. Holland, 



Sowb. Gen, f. 1, 2. 



Voy. Astrol., pi. 78, f. 1-4. 



ftssil, Trigonia crenulata. 

 Trigonia margaritacea, Lam. 



CLASS. TROPIOPODA. 



ORDER. BIMUSCULOSA, 



FAMILY NAIADES. 



GENUS UNIO. Bruguiere. 



Wabash River, 



Alabama River, 



Ohio River, 



Alabama River, 



Fox River, 



Detroit River, 



N. West Territory, 



Ohio, 



Alabama River, 



S. America, 



Amazon River, 



Corrientes, 



Argent. Republic, 



Bolivia, 



Rio de la Plata, 



Carniola, 



Congaree River, 



Bengal, 



Ohio River, 



N. Orleans, 



Amer. Conch, pi. 17. 



Tr. Am. P. S, 4, p. 89, pi. 10, f. 18. 



C. of Mac. Lye, 1827, 1, pi. 3. 



N. F. W. Shells, p. 67. 



Nich. Ency. Am, pi. 4, f. 2. 



Conr. Monog, p. 56, pi. 31. 



Sowb. C. Syst, pi. 89, f. 8. 



Swain's Exot. C, pi. 7. 



N. F. W. Shells, p. 43, pi. 2, f. 1. 



Sowb. C. Syst, pi. 87, f. 2. 



Blain. Mai, pi. 67, f. 4. 



Cuv. Regn.An,pl. 90 bis? f. 2. 



Spix. Test, p. 32, pi. 25, f. 3, 4. 



Voy. Amer. M, pi. 73. 



Voy. Amer. M, pi. 72, f. 4-10. 



Rossm, pi. 15, f. 212. 



Ts. Am. P. S, v. 4, pi. 17, f. 43. 



Enc. Meth, pi. 247, f. 1. 



Ts. Am. P. S, v. 4, pi. 8, f. 11. 



Amer. Conch, pi. 52. 



is Unio crassus, Say. 



m Unio cyphius, Raf. 

 is Unio inflatus, Lea. 

 Symphynota alata, Lea. 

 Unio megaptera, Raf. 



Unio alatus, Swains. 



Castalia ambigua, Lam. 

 Unio ambigua, Blain. 

 Mya ambigua, Wood. 

 Tetraplodon pectinatum, Spix. 

 Castalia quadrilatera, D'Orb. 

 Castalia inflata, D'Orb. 

 Unio batavus, Lam. 



is Unio marginalia, Lam. 

 is Unio teres, Raf. 



