163 St. Maurice and Claiborne Pelecypoda 163 



and anterior parts ; ligament more elongated ; beak more nearly 

 erect. 



From the Claiborne sand, Claiborne, Ala. Now in the Pal- 

 eontological Museum at Cornell. 



Tellina (Angulus) subplana d'Orb., PI. 50, Fig. 3 



Egeria plana Lea, Cont. to Geol., 1833, p. 54, pl.i, fig. 24 (not "25"). 

 T. subplana d'Orb., 1850, Prod. Ct. 25, No. 784. 



Tellina plana Con., Amer. Jr. Sci., 1846, vol, i, p. 400, pi. 4, fig. 6- 

 T. {Angulus) plana Dall, Trans. Wag., Ill, 1900, p. 1016. 



Lea's original descHptioti. — Shell scaleniform, very compressed, 

 transverse, ver}- inequilateral, smooth and shining, furnished with two 

 lamellar lateral teeth ; substance of the shell very thin ; beaks very small 

 and pointed ; cavity of the shell extremely shallow ; margin entire. 



Diam. nearly .1, Length .2, Breadth 7-2oths, of an inch. 



Observations. — Differs from the ovalis, which it most resembles, in 

 being smooth, more compressed and more angular. 



In No. I of this series of Bulletins ('95) I called attention 

 to the fact that Lea's "Fig 24" and "Fig. 25" had been inter- 

 changed. Dall has followed this correction, but has failed to 

 note that Gregorio used the species still changed about, as it 

 were. "• Donax plana" of Gregorio is therefore a synonym of T. 

 leana Dall {ovalis Lea), and not T. plana as Dall states (op. cit. 

 p. 1016). 



Cossmann regards ovalis and pla7ia as synonyms. See 

 footnote p. 9, Notes Complement. &c, 1893. 



Type.—^o. 5139, Lea Coll., Phila. Acad. Nat. Sci. 

 Horizon. — Claiborne Eocene. 

 Specimen figured. — Copy of Lea's figure of type. 

 Locality. — Claiborne, Ala. 



Tellina leana Dall, PI. 50. >'igs- 4-6 



Egeria ovalis Lea, Cont. to Geol., 1833, p. 54, pl. i, fig. 25(not "24"). 



Tellina {Peronc^oderina) ovalis Con., Am. Jr. Conch., vol. i, 1865, 



P- 5- 

 Donax plana di^GrQg.,Mon. Faun. Eoc. Ala., 1890, p. 221, pl. 35, 



