131 St. Maurice and Claibounk Pklecypoda 121 



stage. 



Type.—Oi thesp., Phila. Acad. Of var. Mus. C. U. 



Horizon. — Sabine- Claiborne inclusive. 



Specimens figured. — Paleont. Mus. Cornell Univ. 



Localities.— S2ih\n&, Woods Bluff, Ala. St. Maurice, Ham- 

 ilton Bluff, Ozark, Usbon, Ala. ; Ft. Gaines, Ga. ; Eutaw 

 Springs?, S. C. 



Lucina pandata Dall, PI. 39- Figs- 6, 7 



L. pandata Con., Amer. Jr. Sci., vol. 23, 1833, p. 343. 



L. compressa Lea, Cont. to Geol., 1833, p. 55, pi. i, fig. 27. 



L. compressa ^& Greg., Mon. Faun. Eoc. Ala., 1890, p. 206, pi. 29, 



fig- 5. 

 Phacoides {Miltha) pandatus Dall, Trans. Wag., Ill, 1903, p. 1374. 



Conrad's original description. — Shell oval, compressed, obscurely 

 cancellated ; anterior side somewhat currugated ; beaks nearly central ; 

 teeth three in one valve ; anterior muscular impression profoundly elong- 

 ated ; lunule excavated, minute. Length one inch and one fourth. 



Locality. — Claiborne, Alab., London clay. This shell is allied to 

 Lucina ^nutabilis Lam. 



This is the most abundant large Luci^ia of the Claiborne 

 Eocene. At Claiborne it is often thickened within, showing 

 muscular scars and pitting, deeply depressed. This thickening 

 is perhaps not so common in the St. Maurice beds. We have 

 found no specimens of this species west of the Mississippi but it 

 occurs fairly abundantly in form of casts on the Neuse River, 

 N. C. 



Types. — The specimens in the Conradian Collection, Phila. 

 Acad. 



Horizon. — St. Maurice and Claiborne Eocene. 



Specimens figured. — Claiborne specimens in the Paleont. 

 Mus. Cornell Univ. 



Localities. — Claiborne, Ivisbon, Ala. Rock Landing, Neuse 

 River, N. C. 



Lucina claibornensis Conrad, PI. 39. Figs. 8, 9. 



Cyclas claibornensis Con. Amer. Jour. Conch., vol. x, 1865, p. 146. 



