175 Eocene Moixusca 9 



Ringicula alabamensis n. sp., PI. 2, figs. 8, a. 



This Bulletin. 



Ringicula butieriana var. lignitifera n. var., PI. 2, fig. 9. 



This Bulletin. 



Ringicula claibornensis n. sp., PI. 2, fig. 10. 



This Bulletin. 



Descriptions of New Species. 



Gastropoda. 



RINGICULA. 



Ringicula lisbonensis n. sp., PI. 2, fig. ir. 



Shell small; whorls five; surface marked with close-set spiral 

 lines; aperture narrow, about half the length of the shell; outer 

 lip smooth, terminating posteriorly on the body whorl before 

 reaching the suture; the continuation around the posterior notch 

 strongly developed till it reaches the centre of the inner lip; two 

 strong plaits on the inner lip. 



This little species is smaller than R. biplicata Lea. It has a 

 smooth outer lip and the posterior canal to the aperture different 

 from any other form known. 

 Locality. — Alabama: Lisbon. 



Ringicula claibornensis n. sp., PI. 2, fig. 10. 



Shell small; whorls five; the first three nearly smooth, balance 

 spirally striated; aperture narrow, rather long, but not reaching 

 the suture; outer lip very strongly reflexed, smooth outside and 

 and within; inner callus heavy, with a small ere(5l tooth project- 

 ing from the posterior part; the anterior with two strong plaits 

 angular to each other; anterior notch strongly developed. 



This species is larger than R. biplicata Lea, and has no smooth 

 band below the suture, the outer lip is smooth within, and much 

 stouter than in the other form. 



Locality. — Alabama: Claiborne sand bed, Claiborne. 



Ringicula alabamensis n. sp., PI. 2, figs. 8, a. 



Shell small; spire blunt; whorls five, first two smooth, the 

 others spirally striated; the striae are exceedingly fine and closely 



