— 72 — 



Area Linn. 1758. Syst. nat. ed, X. * et 1767. ed. XII. p. 

 1140. et Gmelin 1788. Ed. XIII. p. 3305. 

 Etym. Nom. appell. 

 Genus Bivalvium. 

 Adoptat Brug. 1789. Enc. meth. I. p. 92. 



Cuv. 1800. Anat. comp. * — subgenera: Pectun- 

 culus, Arca, Nucula. 



1817. Regn. an. * — genus Ostraceorum. Sub- 

 genera eadem. 

 Pariter Schwei(;c;i:r 1820. Natgsch. p. 713. Ad 



subgenera acccdit Cucullaea. 

 Cuv. 1830. R. a. ed. 2a (ed. Voigt. III. p. 472.) — 

 genus Ostraccorum dimyorum. Subgenera: 

 Arca, Cucullaea, Pcctunculus, Nucula. 

 Area Lamck. 1799. Prodr. * et 1801. Syst. an. p. 115. 



Genus emendatum, ejectis Pectunculo, Nucula et 



Cucullaca. 

 Sequuntur RoissY 1805. Moll. VI. p. 395. 

 DuvERNOY in Dict. sc. nat. tom. 2. p. 457. 

 Defrance il)id. suppl. p. 113. 

 Laivick. 1809. Phil. zool. p. 318. — genus Arcaceorura. 

 Pariter Latr. 1825. Fam. nat. 



Lamck. 1818. Ilist. (cd. 2a VL p. 457.) 



Rang 1829. 3Ian. p. 287. 



Menke 1830. Syn. ed. 2a p. 102. 



Desh. 1830. Euc. meth. III. p. 553. Tabl. 



G. B. Sow. Gen. Sh. fasc. 36. 



Bronn 1838. Leth. p. 937. 



Agassiz 1839. Moul. d. 3IoIl. p. 34. 



G. B. Sow. jun. 1842. Conch. Man. ed. 2a 



p. 71. 

 De KoMNCK 1843. Terr. houill. p. 111. 

 Nyst 1846. Coq. foss. Belg. p. 254. Subgenera : 

 Arca, Cucullaea. 

 J. Sow. Min. Conch. tab. 44. 



Gray 1821. in Lond. Med. Repos. — genus Pogo- 

 nopodum. 



