91 LiGNiTic Stage 91 



surface marked by lines of growth. 



''Locality. — Six miles above Claiborne, Ala." 



Localities. — Ala.: Yellow bluff; Bell's landing; Gregg's land- 

 ing (the most abundant here); Lower Peach Tree, and Tusca- 

 homa. 



Type. — Hall's colledlion. 



Specivien figjired. — From Gregg's landing; Paleontological 

 Museum, Cornell University. 



Natica (Lacunaria) erecta, PI. n, fig. 28. 



Syn. Natica erecta Whitfield, Am. Jr. Conch., vol. i, p. 264, pi. 27, fig. 

 II, 1865. 



Whitfield's original description. — "Shell subglobose; spire ele- 

 vated; volutions five, ventricose; suture well marked; sub.stance 

 of the shell thin; aperture large, obliquely ovate; outer lip thin 

 and sharp; columellar lip slightly thickened and grooved, without 

 callus; umbilicus small, partly concealed by an extension of the 

 columellar lip; surface of the shell polished. 



''Localities. — Six miles above Claiborne, on the we.st side of the 

 river, and ten miles below Prairie bluff, Ala." 



Aldrich has kindly given me the specimen figured. I have re- 

 cently found in our collecftions several specimens of this species, 

 all from Bell's, and of a peculiar horn color. 



Type. — Hall's collecftion. 



Specime7ifigiired. — From Bell's landing; Harris' colledlion. 



Natica (Lacunaria) alabamiensis, I'l- ". fig- 29- 



Syn. A^. {Griodes) alabamiensis Whitf., Am. Jr. Conch., vol. i, p. 265. 



pi. 27, fig's. 9, 10, 1865. 

 Lacunaria alabamiensis Con., Am. Jr. Conch., vol. 2, p. 77, 1886. 

 Natica alabamiensis Aid., Geol. Surv. Ala., 1S86, Bull, i, p. 56. 

 Ampnllina alabamiensis Cossm., Ann. de Geol. et. Pal., 1893, p. 26. 

 A^atica {Girodes) alabamiensis Har., Bull. Am. Pal., vol. i, p. 231, 



pi. 22, fig. 14, 1896. 



Whitfield's original description. — (See this publication, vol. i, 

 P- 231). 



