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TERTIARY FAUNA OF FLORIDA X 393 



Conrad described the adult (undata) and young (distant} shells as separate 

 species in 1833 ; he united them under the name of undata in 1846 ; in 1865, 

 having apparently forgotten this consolidation, he united them a second time 

 under the name of distans. The first rectification, of course, must take pre- 

 cedence. 



Corbis claibornensis Dall. 

 Corbis lamellosa Conrad, Morton, Syn. Org. Rem., App., p. 7, 1834; Bull. Nat. Inst, ii., 



p. 175, 1842; name only; not of Lamarck. 

 Corbis lamellosa Conrad, Am. Journ. Sci., 2d Ser., i., p. 401, pi. iv., fig. 16, 1846 ; not of 



Lamarck. 

 Gafrarium liratum Conrad, Am. Journ. Conch., i., p. 9, 1865; not Lucina (Corbis) lyrata 



d'Archiac, Geol. de 1'Aisne, p. 372, pi. xxvi., fig. 3, 1840. 



Claiborne sands, at Claiborne, Alabama ; rare. 



This elegant shell was at first wrongly identified with a European species 

 by Conrad, and in 1865 renamed, but, unfortunately, the name selected had 

 already been used for another European species, so that a new name is neces- 

 sary and is proposed as above. 



The shell described by Conrad in 1848 (Proc. Acad. Nat. Sci. Phila., iii., 

 p. 293, 1848; and Journ. Acad. Nat. Sci. Phila., New Ser., i., p. 124, pi. xiii., 

 fig. 20) is doubtfully referable to this genus and requires further examination. 

 It was described from the Vicksburgian horizon and has no radial sculpture. 

 Sowerby has described a South American species collected by Darwin from 

 Chile under the name of Icsvigata, but it is not the C. Icevigata of Lycett, Ann. 

 Mag. Nat. Hist., 1850, p. 423. 



Superfamily CHAMACEA. 

 FAMILY CHAMID^. 



Genus CHAMA (Linne") Bruguire. 



<C7mma Linne, Syst. Nat., ed. x., p. 691, 1758; Kammerer, Conch. Cab. Schw. Rudol- 

 stadt, p. 193, 1786. First species C. lazarus Linne. 



Chama Bruguiere, Enc. Meth. (Hist. Nat. des Vers., i., pt. 2), vi., pp. xiii., 1789, and 385, 

 1792; Mus. Boltenianum, ist ed., p. 195, 1798; Cuvier, Tableau Elem., p. 429, 1798; 

 Lamarck, Prodrome, p. 81, 1799; Link, Beschr. Rostock Samml., p. 154, 1807; Schu- 

 macher, Essai, p. 128, pi. vi., fig. 4/1817; Morch, Cat. Yoldi, ii., p. 36, 1853; H. and 

 A. Adams, Gen. Rec. Moll., ii., p. 463, 1857. Type C. lazarus Linne (not Lamarck) ; 

 cf. Born, Test. Mus. Vind., pi. v., figs. 12-14, 1788, = C. damce'cornis Lamarck, 1818. 



Macerophylla Meuschen, Mus. Gevers., p. 430, 1787 (nomenclature not Linnean). 



