876 PBOCEEDINGS 01 THE NATIONAL MUSEUM. 



Anisodonia Deshayes, 1858, A. complanata Deshayes. 



Sections: Fulcrella Cossmann, 1886. Poromya paradoxa Deshayes. 

 ? Basterolia Mayer, 1870. Corbula quadrata Hinds. 

 Hindsiella Stoliczka, 1871. Modiola arcuaia Defrance. 



Family LEPTOOTD^. 



Entovalra Voeltzkow, 1890. E, mirabUis Voeltzkow. 

 Lepton Tnrton, 1822. Solen squamosus Montagu. 



Subgenera: JVeoZep^on Monterosato, 1875. L. sulcatitlum Jeffreys. 

 Lutetina Vdlain, 1876. L. an tarcticaV Slain. 

 Epilepton Dall, 1899. Lepton clarkios Clark. 

 Planikellia Cossmann, 1887. Erycina radlolata Lamarck. 

 Erycina (Lamarck, 1806) K^cluz. Erycina pellucida Lamarck. 

 Subgenera: <Scaccfiia Philippi, 1844. Tellin a elliptica ScsLCchi. 



AnomalokeJUa Cossmann, 1887. A. catalaunensis Cossniann 

 rseiidopytliina Fischer, 1884. P. macandrewi Fischer. 

 Turquetia V^lain, 1876. T. fragilis V^lain. 

 Bornia Philippi, 1836. Erycina coriuloides Bivona. 



Sections : Ceraiobornia Dall, 1899. Lepton longipes Stimpson. 

 Pythina Hinds, 1844. P. deshayesiana Hinds. 

 Kellia Turton, 1822. Mya suboriicularis Moutagn. 



Sections: jlfanciA;e?Ka Dall, 1899. >?06: j;MmiZa Monterosato. 

 Kelliola Dall, 1899. Kellia symmetros Jeffreys. 

 Divarikellia Cossmann, 1887. K. nitida Caillat. 

 Thecodonta A. Adams, 1864. T. aieboldii Adams. 



? Subgenera : Serridens Dall, 1899. Pristiphora oblonga Carpenter. 

 Dicranodesma Dall, 1899. Mysella calvertensis Glenn. 

 Mysella Angas, 1877. M. anomala Angas. 



Subgenera: Py>tMnella Dall, 1899. Montacuta cuneata Verrill. 



Sphenalia S. Wood, 1874. Montacuta donacina S. Wood. 

 Rochfortia V^lain, 1876. B. aiistralis V<Slain. 

 Pachykellya Bernard, 1897. P. edwardsi Bernard. 



Lasaa Leach, 1827. Cardium rubrinn Montagu. 

 MyllUa Orbigny, 1850. M. deshayesii R6cluz. 

 Perrierina Bernard, 1897. P. taxodonta Bernard. 



Family KELLIELLID^. 



Eelliella Sars, 1870. K. abyssicola Sars. 

 Lutetia Deshayes, 1860. L. parisiensis Deshayes. 

 Alveinus Conrad, 1865. A. parvus Conrad. 

 Cyamiomactra Bernard, 1897. C. problematica Bernard. 

 Turtonia Alder, 1848. Venus minuta Fabricius. 



