C 57 ) Tertiary Mollusca op Ala. and Tex. 5 



5. Cadulus qiiadritiirritiis VL'r, Contr. , p. 65, pi. 3, fig's. 7, 7a, 



i; 



6. Cadulus corpulentus M'r, Contr., p. 66, pi. 3, fig. 5, 1886. 



7. Caduhis tiirgidus M'r, Contr., p. 65, pi. i, fig. 10, 1886. 



8. Cadithis vicksbiirgensis Wr, Amer. Jr Sci. , 1885, and Contr., 



p. 65, pi. 3, fig. 6, 1886. 



PTBROPOBA . 



SPIRIALIS. 

 Spirialis elcmgatoidea h\&.. PI. 2, fig. 9. 



Phvsa elongatoid€a A1&. , 'jr . Cm , Soc. N. H., July. 1887, 

 p. 83. 

 This form and the next were described as Physce, but a more 

 careful examination proves them to be Pteropods. 



Sphdalis cliodavensis Aid. 



Physa chodaveyisis Aid., Jr. Cin. Soc. N. H.. p. 83, 1887. 

 Ses remark upon previous species. 



Creseis s^. PI. i, fig. 5. 



This form was received from Wheelock, Texas. It is more 

 slender than typical Styliola simplex M'r, but is probably that 

 species. 



GASTROPODA . 



VOLVARIA. 

 Volvaria bidloides Lam. PI. 2. fig. 13. 



This species has heretofore been given the manuscript name of 

 M. ( Volvaria ) gabbiana by me, and Mr. Harris has lately publish- 

 ed it under the same specific name. A careful examination of 

 •specimens from Grignon, France proves the species to be the same. 



RINGICULA. 



Ringiada- butleriana, nov, sp. PI. i, fig. 8. 



Shell robust, ovate ; whorls five, rounded, transversely or spi- 

 rally ribbed ; columella with strong callus and three folds. The 

 outer lip thickened, smooth within ; aperture large ; length of the 

 same, four-fifths of the body whorl. 



Locality. — -Butler, Ala. 



Horizon. — Wood's Bluff beds. 



Differs from P. biplicata Lea sp. (PI. i fig. 9 ) by the absence 

 of any crenulations upon the inner margin of the outer lip, and 



