TRANSACTIONS OF WAGNER 

 956 



TERTIARY FAUNA OF FLORIDA 



Aulus Oken, Allgem. Naturg., v., i., pp. iv., 297, 1835; sole ex. Solcn radiatus Linne ; 

 not of Oken, Lehrb., p. 225, 1815. 



Aulus Agassiz, Moules d'Aceph. Viv., p. 42, 1839, Oken, 1835. Type Solcn radiatus 

 Linne; not of Oken, 1815, type 5". diphos L. 



Leguminaria Schumacher, Essai, p. 126, 1817. Type 5. radiatus Linne (L. costaia 

 Schum., pi. 7, fig. i). 



Solecurtus A, Blainville, Man. Mai., p. 568, 1825. Type 5. radiatus Linne. 



Solecurtoides Desmoulins, Actes Soc. Lin. de Bordeaux, v., p. 108, 1832. Type 5'. radi- 

 atus Linne. 



Machfura Gould, Inv. Mass., p. 32, 1841. Type Solen costatus Say; not Machcera Cuvier, 

 1832. 



Solcnocurtus Sowerby, Man., p. 99, 1839; ed. ii., p. 262, 1842. 



This genus is chiefly American and Oriental in its distribution. Megerle's 

 name antedates all others. Aulus Oken, as originally proposed without a 

 diagnosis, contained two species, both belonging to the older genus Sanguino- 

 laria Lamarck. Subsequently Oken tried to transfer the name to Siliqua 

 radiata and its congeners, which, of course, is inadmissible. 



This genus was fully differentiated before the beginning of the Tertiary, 

 and a thorough examination of the Eocene faunas will doubtless reveal several 

 species, but hitherto the material collected has been sparse and fragmentary. 

 One species, 6". Simondsi Harris (Proc. Acad. Nat. Sci., 1895, p. 51, pi. 3, 

 fig. 2), has been described from the Claibornian of Texas, another from the 

 Oligocene of St. Domingo. 



Siliqua subequalis Gabb. 

 Siliqua stthcqualis Gabb, Geol. St. Dom., p. 247, 1873. 



Oligocene of St. Domingo, Gabb ; and of the Chipola beds of Calhoun 

 County, plorida, at Alum Bluff and on the Chipola River ( ?) ; Burns. 



This species is smaller than 5". costata and has centrally situated beaks. 

 The specimens from Florida are fragmentary, but the beaks were evidently 

 nearly central, and until better material is at hand I prefer to refer it to Gabb's 

 species, which came from nearly the same horizon. 



Siliqua Nuttallii Conrad. 

 Solecurtus Nuttallii Conrad, Journ. Acad. Nat. Sci. Phila., ist Ser., vii., p. 232, pi. 17, 



fig. 9, 1838. 

 Siliqua californica Conrad, Am. Journ. Conch., iii., p. 193, 1867. 

 Siliqua patula auct. ex parte. 

 Machcera patula Gabb, Pal. Cal., ii., p. 89, 1869, in part, synonymy excluded. 



