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80 1 



TERTIARY FAUNA OF FLORIDA 



Point, but its wide distribution, evidently antedating the present conformation 

 of Central American and Mediterranean lands, is much in favor of its antiquity. 



Lithophaga (Diberus) bisulcata Orbigny. 

 J.it/t<(i>i>nis liisti/fii/its Orb., Moll. Ctibann, ii., p. 333, pi. 28, figs. 14-16, 1847 (Spanish 



c-ilition and atlas, 1845). 



.Modio/a appcndicitliita, 1'liil., Abbild. und Bcsrhr., ii., p. 150, pi. i, fig. 4, 1846. 

 Mytilus tit/cinialtis Gibbcs, Cat. S. Car., p. \\ii., 1848 ; not of Dcshayes. 

 Lillwplia^ns iippciitUciihitiis Miirch., Cat. Yokli, ii., p. 56, 1853. 

 Lithi'doinus iippi-iiiticitlatiis Reeve, Conch. Icon., x., pi. 4, fig. 21, 1857. 

 I.itlwiioi/nis biexfavatiis Kccvc, op. fit., fig. 22, a-l>. 

 I. it hop limits Insiih-atus Dall, Hull. U. S. Nat. Mus., No. 37, p. 38, 1889. 



Oligoccne of the silex beds at Ballast Point, Tampa Bay, Florida, Dall ; 

 recent from South Carolina southward to the Gulf of Mexico, West Indies, 

 and Rio Janeiro, Brazil. 



This species was found in the silex beds not only with the shell pre- 

 served or reproduced, but with a complete pseudomorph of the calcareous 

 mantle in which the lime was replaced by silica. 



Among the species reported in the literature of the American Tertiary is 

 L. claibonicnsis Conrad (Journ. Acad. Nat. Sci. Phila., 2d Ser., i., p. 131, pi. 14, 

 fig. 27, 1848; Aldr., Bull. Pal., 2, p. 17, pi. 5, fig. 14, 1895), from the Clai- 

 bornian ; L. gaincscnsis Harris (Bull. Pal., 4, p. 50, pi. 3, fig. 7 a, 1896), from 

 the Upper Midway Eocene of Georgia, which may be referable to Botttla ; L. 

 incitri'a Gabb (Journ. Acad. Nat. Sci., 2d Ser., viii., p. 377, pi. 47, fig. So, iSSi), 

 from the Pliocene of Costa Rica, which is certainly a Botitla and very close to 

 /A cinnamomea Lam. ; and L. subalveata Conrad (Am. Journ. of Conch., ii., p. 

 73, pi. 4, fig. 4, 1866), from the lowest Miocene of New Jersey, a peculiar 

 species with which Alodiola lioitstonia Harris (1895) should be carefully com- 

 pared. L. dactylits Sby. is reported by Conrad (Am. Journ. Sci., 2d Ser., i, p. 

 2io)us having been found by Lyell in Georgia, but this is perhaps a mis- 

 identification ; the species may have been L. niula. The figure of Byssomia 

 pctricoloidcs Lea (Contr. Geol., p. 48, pi. i, fig. 16, 1833) much resembles a 

 chipped Lithophaga, and the suggestion of Gregorio that it is identical with 

 L. claiborncnsis Conrad is plausible. 



Genus CRENELLA Brown. 



Cn-iii-lla Ilrown, 111. Conch. Gt. Hrit., pi. 31, figs. 12-14, 1827; 2cl edition, p. 75, pi. 23. 

 tigs. 12-14, '844. Type Mytilus dci'itsstitus Montagu, 1808. 



