NO. 2162. FLINT RIVER OLIGOCENE FOSSILS— DALL. 491 



GLYCYMERIS MISSISSIPPIENSIS Conrad. 



Pectunculus mississippiensis Conrad, Joiirn. Acad. Nat. Sci., Phila., new ser., 



vol. 1, 1848, p. 125, pi. 13, fig. 25. 

 Axinsca mississippiensis Conrad, Amer. Journ. Conch., vol. 1, 1865, p. 12. 

 Glyeymeris mississippiemis Dall, Trans. Wagner Inst. Sci., Phila., vol. 3, 1898, 



p. 608. 



Localities.— Stsitions 3388, 3401, 6175, 7096, 7132, and 7150a, on 

 the Flint River, within a range of 12 miles of Bainbridge, Decatur 

 County, Georgia; Vaughan, Cooke, and Mansfield, 1914. U. S. Nat. 

 Mus. Cat. No. 1 66764. Also in the Oligocene of Vicksburg, Mississippi ; 

 Conrad. 



OSTREA MAURICENSIS Gabb. 



Ostrea mauricensis Gabb (part) Journ. Acad. Nat. Sci., Phila., eer. 2, 1860, p. 376, 

 pi. 67.— Dall, U.S.Nat.Mus.Bull. 90, 1915, p. 123. 



OHgocene of southern New Jersey; of the layers above the Alta- 

 maha grit of Georgia; of the Orihaulax pugnax zone at Ballast Point, 

 Tampa Bay, Florida; of the beds at Vicksburg, Mississippi (Gabb); 

 and at station 3400, at Mitchell Griffin's field, 8 miles southeast of 

 Bainbridge, Decatur County, Georgia; T. W. Vaughan, 1900. U. S. 

 Nat. Mus. Cat. No. 166747. 



Poorly preserved specimens, apparently identical with those 

 referred in the hterature to Gabb's species. 



OSTREA VICKSBURGENSIS Conrad. 



Ostreavicksburgensis CoijnAD, Proc. Acad. Nat. Sci., Phila., for 1848, p. 296; Journ. 



Acad. Nat. Sci., Phila., new ser., vol. 1, 1848, p. 126, pi. 13, figs. 5, 37. 

 Ostrea mortoni Gabb, Proc. Acad. Nat. Sci., Phila., for 1861, p. 329. 



Locality. — Station 7074, on the west bank of Fhnt River at Hale 

 Landing, 7 miles southeast of Bainbridge, Decatur County, Georgia, 

 in coraUiferous chert; Vaughan, Cooke, and Mansfield, 1914. U. S. 

 Nat. Mus. Cat. No. 166765. Also in the OHgocene of Vicksburg, 

 Mississippi; Conrad, and the Jacksonian Eocene. 



OSTREA cf. PODAGRINA DaU. 



? Ostrea podagrina Dall, Proc. U. S. Nat. Mue., vol. 18, 1895, p. 122; Trana. 

 Wagner Inst. Sci. Phila., vol. 3, pt. 4, 1898, p. 682, pi. 30, figs. 5, 6. 



Locality. — Station 2326, at Blue or RusseU Spring, near the Flint 

 River, 4 miles south of Bainbridge, Decatur County, Georgia; 

 R. Pumpelly, 1891, U. S. Nat. Mus., Cat. No. 166748. 



A species of oyster, apparently similar to 0. podagrina, and differing 

 from the others cited, but too imperfect to be positively identified 

 with the form collected by Eldridge from the Sulphur Spring on the 

 Suwannee River. 



