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670 



TERTIARY FAUNA OF FLORIDA 



<>. piiii't'i'iii! Lea, op. (//. , p. 92, pi. 3, fig. 73, 1833. (Misprinted pincera, princt-rna, and 



pinccinii in various works.) 



(>. c>rUi,,-a Morton (fx part,-}, Syn. Org. Rem., p. 52, pi. 19, fig. 3, 1834. 

 (). </,ii/> l n-iu-!isis (Conr. MS.), Harris, Bull. Pal., i., pp. 3, II, 1895. 

 .' (>. sciniliinata Lea, Contr. Geol., p. 90, pi. 3, fig. 69, 1833. 



Eocene of Claiborne and Gosport, Alabama ; Oligocene of Vicksburg, 

 Mississippi, and perhaps of Florida and California. 



The reason why the name sciniltinata was not originally adopted for the 

 synonymous oysters of Lea was partly on account of a suspicion that the 

 type of sciniliinata was a worn, immature specimen of sellceformis , and partly 

 because the name is less appropriate. There is no reason why the original 

 decision should be changed at present. 



The 0. alabainieiisis, when its outer layer is preserved, shows, as noted 

 by Cossmann, fine radial grooving, which is usually lost with the thin dehis- 

 cent coating referred to. The species which is here termed 0. mauricicnsis 

 would form a direct continuation of the line of the alabamiensis, and it is not 

 impossible that they should be specifically united, but I have never been able 

 to obtain an absolutely complete specimen of Gabb's shell, so as to see if 

 the prismatic layer agreed. From mauriciemis to virginica the gap is hardly 

 noticeable. The Californian oyster which has been called 0. Tayloriana Gabb 

 is suspiciously close to the present series. 



Ostrea compressirostra Say. 



(>. t ;iiiipi;-^ii-ii.tti-ij Say, Journ. Acad. Nat. Sci. Phila., iv., p. 132, pi. viii., fig. 2, 1824. 

 (.',1-yplni-a iinitahi/is Morton, Journ. Acad. Nat. Sci. Phila., vi., p. 81, pi. iv., fig. 3, 1828; 



Synops. Org. Rem., p. 53, pi. iv., fig. 3, 1834. 

 <>. siinuixa Rogers, Trans. Am. Phil. Soc., N. S., v., p. 340, 1831, and vi., pi. xxvii., 



fig. i, 1839. 



(). disparilis Conr., Medial Tert., p. 51, pi. 26, 1840. 

 O. 'J'tttn,-vi Conr., I 'roc. Acad. Nat. Sci., ix., p. 184, 1865 (not of Coquand, 1869, Mon. 



Ostr., p. 68). 

 .' O, piiiiilifiirniis Aklr., Journ. Cin. Soc. Nat. Hist., p. 79, 1887, as of C.abb, Proc. Acad. 



Nat. Sci. Phila. for 1861, p. 328, 1862. 

 <>. K<i?'f>t<-/r<i>i,t Tuomey and Holmes, Pleioc. Kos. S. C., p. 21, pi. 6, fig. i, 1855 ; Conr., 



I'roc. Acad. Nat. Sci. Phila. for 1863, p. 582. 

 O. /i,-//,i7;i,-t/i,i Conr., Hull. Nat. Inst., ii., p. 172, 1842, not of Lamarck. 



Eocene : of Piscataway Creek, Upper Marlboro, and Leland, Prince 

 George County, Maryland; lower bed Aqtiia Creek, of Evergreen, Glost. r 

 City, City Point, and Coggins Point, Virginia; also on the Eastern Shore of 



