56 Bui,i.ETiN 31 56 



figure given is from Dall (^op. cit.). 



Area harrisi Sheldon, PI. 22. Fig. 21. 



Area inornata Meyer, Bull, i, Geol. Surv. Ala., 1S86, pt. II, p. 79, fig. 



24- 

 Area ha nisi ^\\^\(S.or\, Paloeontogr. Anier., vol. i, 1916, p. 21. 



Meyer's original dcseription. — Trapezoidal ; anterior side truncated, 

 flat ; beak small ; ligament area very low ; teeth smallest toward the middle ; 

 covered xn'Ca indistinct concentric lines ; margin entire. Localit}', Clai- 

 borne, Ala. Resembles Area Iczvigata Caillat (Desh. An. sans verteb. , I, p. 

 905, pi. 68, figs. 23-26) from the Paris Basin but is less oblong. 



So far as we are aware no one since Mej'er" s time has found 

 another specimen of this peculiar form. Its generic assignment 

 .seems open to doubt. The specific name was changed by Shel- 

 don because Meek and Haj^den had described an Area {CiiciilleEa) 

 i?iornata'n\ 1858 (Proc. Phila. Acad., p. 51). 



We have herewith copied Meyer's figure. The type is doubt- 

 less in the Aldrich collection at Johns Hopkins Univ. 



Leda semen Lea, PI. 23. Figs. 1-4. 



Nueula semen Lea, Cont. to Geol., 1833, p. 200, pi. 6, fig. 214. 



Nuculana semen Con., Am. Jr. Conch., vol. 1, '65, p. 13.. 



? Nueula mieronata Con., Proc. Phila. Acad. Nat. vSci., vol. 4, 1847, p. 

 297 ; Jr. Phila. Acad., vol. i, 1849, p. 128, pi. 14. 



Nuezilana semen Cossm., Notes Compl. 1893, p. 15. 



Nueulana semen Aid., Bull, i, Gaol. Surv. Ala., '86, p, 49. 



Leda semen Dall, Trans. Wag. &c., '98, p. 578. 

 Lea's original description. — Shell transversely elliptical, rather in- 

 flated, furnished with large concentric folds, and v.ith a deep fi;rrow on the 

 anterior slope, rostrate behind ; substance of the shell rather thin ; lunvile 

 and escutcheon both lanceolate ; beaks small, rather pointed ; margin en- 

 tire ; nacre not pearly. 



Lea had but one immature specimen and that is now lost. 

 However, there is no danger of incorrect identification when 

 dealing with this species. See the illustrations. 



Type. — Was from Claiborne sands, but is lost. 



Specimens figiit'ed . — Paleont. Mus. Cornell Univ. 



Localities and horizons. — St. Maurice : Lisbon, Hamilton 

 Bluff, Ala. ; Piping Tree, Va. ; 3 and 6 miles W. N. W. of 

 Orangeburg, S. C. Claiborne : Claiborne sands. 



