The Nautilus. 



Vol. IV. JULY, 1890. No. 3. 



A NEW EOCENE FOSSIL FROM TEXAS. 



BY T. H. ALDRICH, CINCIXXATI, OHIO. 



Omalaxis Singleyi n. .sp. 



Shell flat, smooth, tricaviiuite, one carina on each edge and one 



. on the periphery of the body whorl ; a])ex im])ressed ; 



, ;^ whorls four, but three showing above, suture deeply 



\., ^— ' excavated, upper and lower part of whorls inclining 



toward suture. !Mouth nearly quadrangular. Length 



Liim. ; breadth .'3nun. Locality: Lee Co., Texas. 



'^"^ This is the second species now known from the 



Atlantic Eocene. The first was described by I. Lea 



^from the Claiborne sand as " Orbis rotella. " For the 



generic synonymy see Ball's " Report on the jMoIIus- 



ca," 1889, part 2, p. 276. Discovered by J. A. Singley, Esq., and 



named in his honor. 



NEW FORMS OF WESTERN LIMNIADES, 



BY HENRY HEMPHILL, SAN DIEGO, CAL. 



Limnaea (Leptolimnea) Pilsbryi lleiniihill. 



Shell elongated, narrow, somewhat solid, smooth, of a light horn- 

 color ; consisting of about six roundly-shouldered whorls, the last 

 flattened on its sides and occupying a little more than half the length 



