492 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.51. 



PECTEN (LYROPECTEN?) ALPHA Dall. 



Plate 84, fig. 9. 



Pecten (Lyropecten) alpha Dall, Trans. Wagner Inst. Sci. Phila., vol. 3, pt. 4, 

 1898, p. 725 (not figured). 



Shell small, thin, nearly equilateral, suborbicular, sUghtly convex, 

 sculptured with 9 or 10 radial folds with subequal deep rounded inter- 

 spaces, the disk and submargin also bearing fuie radial threads; these 

 appear to be smooth, but the condition of the specimens is such as to 

 prevent a positive decision and they may have been shghtly scaly; 

 on the posterior ear of the left valve are five or six fine elevated radial 

 threads with wider interspaces; the other ear is defective; height of 

 valve 24; breadth 23 mm. 



Locality. — Station 7075, on the east bank of Flint River, about lOJ 

 miles below Bainbridge, Georgia, and just above Lambert Island; 

 C. W. Cooke and W. C. Mansfield, 1914. Also at Sulphur Springs 

 ferry, Suwannee River, Suwannee County, Florida; Burns. U. S. 

 Nat. Mus. Cat. No. 166711. 



PECTEN (AEQUIPECTEN) SUWANNEEnSIS Dall. 



Plate 83, figs. 2, 3, 4. 



Pecten (Aequipecten) suwanneensis Dall, Trans. Wagner Inst. Sci. Phila., vol. 3, 

 pt. 4, 1898, p. 724. 



Localities. — Jacksonian Eocene of the Suwannee River, Florida, 

 Bums; and at station 7075, on the east bank of the Flint River, just 

 above Lambert island, about lOJ miles below Bainbridge, Decatur 

 County, Georgia; station 7076, at bend half a mile below Lambert 

 island on the east bank of Flint River, about 12 miles below Bain- 

 bridge; and station 7079, at Mascot Point, below the mouth of Blue 

 Spring branch, in chert blocks on the east bank of Flint River; 

 Vaughan, Cooke, and Mansfield, 1914. U. S. Nat. Mus. Cat. Nos. 

 166749, 166750, and 166757. 



PECTEN (CHLAMYS) ANATIPES Morton. 



Pecten anatipes Morton, Amer. Journ. Sci., vol. 23, 1833, p. 293, pi. 5, fig. 4; 

 Synopsis Org. Rem., 1834, p. 58. 



Vicksburgian Ohgocene at Heidelberg and m Jasper County, Mis- 

 sissippi, Johnson; station 7096, at Red Bluff, on the west bank of 

 Flint River, 7 miles above Bambridge, Decatur County, Georgia; 

 and station 7132, on the west bank of Flint River, opposite Little 

 Horseshoe Point, half a mile below Mascot Point, and 4^ miles below 

 Bainbridge, in loose lumps of hmestone; Vaughan, Cooke, and Mans- 

 field, 1914. U. S. Nat. Mus. Cat. No. 166752. 



