44 LIMNEA BULIMOIDES. 



I inadvertently neglected to have the Caro- 

 lina shell (constituting the original humilis) 

 figured in full; which I regret, because the Sus- 

 quehanna specimens, though similar in form, 

 differ somewhat in texture, approaching L. 

 desidiosa in this character. This leads me to 

 doubt whether they may not eventually merge 

 into the last named species, as a short, ventri- 

 cose variety. 



LIMNEA BULIMOIDES, Lea. 



Plate 13.— Figs. 9, 10. 



L. testa curta, inflata, perforata, pallida, subdiaphana: 

 anfractibus 4 convexis: sutura impressa. 



SYNONYMS AND REFERENCES. 



L. bvlimoides, Lea. Proceedings Am. Phil. Soc, vol. 

 ii. p. 33. 



DESCRIPTION. 



Shell short and inflated, composed of about 

 4 convex whorls; surface smooth and shining; 

 lines of growth inconspicuous and undeviating, 



