— 392 — 



Diplasma Rafin. 1831. Cont. Mon. Biv. * > Feruss, 1835. 

 Bull. zool. p. 22. 

 Etym. dinXoog, duplex; eXaaua, lamina. 

 Genus Acephalorum, ad Unionem referendum. 

 Dipleiirobraiieliia Gray 1821. Lond. Med. Repos. * 



Efym. dig, bis; nlevQa, latus; ^Qccyxia, branchiae. 

 Nonus ordo Cryptobranehiorum. Unicum genus: 



Phyllidia. 

 Synon. Phyllidiae Fer. 



Phyllidinae Menke olim. Swains. 

 Bifaribranchiata Latreille. 

 Phylbdiaceae Mke. olim. 

 PhyUidiana Fer. Rang. Desh. 

 PhylHdiacea ]Menke. 

 Dlploceras Conrad. 



Etym. dmXoog, duplex; xiQag, cornu. 

 Genus ? Nautileorum. 



Adoptat Emmoxs . . . New-York Geol. Rep. * > 

 Sillim. Amer. Journ. 1844. vol. 47. * :> Leonh. 

 et Br. Jahrb. 1845. p. 619. 

 Diplodon Spix 1827. Test. Bras. t. 26—28. Conf. G. B. Sow. 

 jun. Conch. Man. ed. 2a p. 139. 

 Etym. dmloog, duplex; odovg, dens. 

 = Triquetra Klein et Unio (sp.) Lamck. 

 JUiplodonta Bronn 1831. Ital. Tertiargeb. pag. IX. et 1838. 

 Leth. p. 962. 

 Etym. praeced. 



Novum genus Nymphaceorum. Typus: Venus lupinua 

 Broc. 

 Pariter PniLipPi 18.36. Moll. Sic. L p. 30. et 1844. 

 Ibid. vol. II. p. 24. 

 Nyst 1846. Coq. foss. Belg. p. 138. — in famiba 



Lucinarum. 

 Syt'071. Telbna (spec.) Mont. 



Venus (spec.) Brocchi. Nyst et Westend. 

 Lucina (spec.) Defr. Turt. Desh. Scacchi etc- 

 Psammobia (spec.) Fleming. 



