Aldrich, Eocene Mollusca 



Type. — Ala. Mus. of Nat. History, University, Ala. 

 MicrodriSlia rostratuSa Csy. 



This species described by Col. Casey in 1903 bears a certain 

 resemblance to Pleurotoma insignifica Heilpr. {Fusits nanas Lea) 

 and has been referred to this species, but specimens before me 

 show differences as follows : Col. Casey says the "body whorls 

 are about four in number." My specimens have five, also in the 

 embryo there is sometimes but one costulate whorl, while 

 Pleuro. hisignijica Heilpr. has but three embryonic whorls, all 

 smooth, and no costulate ones. The two species seem to be 

 quite distinct. The Texas form mentioned by Prof. Harris is 

 probably the same as Heilprin's species. 



Spkcies to be added to the Woods Bluff Fauna — 

 FROM Cave Branch, Ada. 



Exilia pergracilis Con. 

 Cylichna deKayi Lea. 

 Cancellaria alveata Con. 

 " costata Lea. 

 Pasithea guttula Lea (H. H. Smith). 

 Cancellaria panones Harris. 

 A7icillaria sttbglobosa Con. 

 Levifusus suteri Aldr. 

 Caricella dolita Con. 

 Drillia lonsdalii Lea. 

 Barnea alatoidea Aldr. 

 Dipiodonta nana Lea. 

 Egerella subtrigonia Lea. 

 Tellina leana Dall. 



Turris bimoniatus, n. sp. PI. i. Fig. 6. 



Shell small, whorls probably ten, spire on the t5^pe partially 

 missing. Another specimen shows four embryonic smooth 

 whorls. The four spiral whorls and part of the fifth ornamented 

 with curved sinuosities covering the main part of the whorls, a 



