27 



17. Buliminus. (Subg-en. Leucochiloides.) * 



fallax, Say. 

 (Syn. Pupa fallax.) 



18. Pupa. Drap. 



1 No palatal folds, angular and parietal lamellae 



quite small, separated or connected; a small col- 

 umellar lam.; sh. cylindrical, with apex obtuse; per- 

 istome everted; glassy colorless; alt. 2.5, diam. 1.2 

 mill. corticaria, Say. 



— palatal folds present 2 



2 colorless — whitish , 3 



— deep horn colored; cylindrical, with apex obtuse; 



peristome everted with a distinct lip; lam, and 

 folds: I parietal, large, complex; i columellar; infe- 

 rior palatal deep seated, oblique, superior as usual; 

 alt. 2, diam. i mill. procera, Gld. 



3 alt. 4 to 5, diam. 2.7 mill.; cylindrical-oblong, apex 



obtuse; whorls 6 to 7; aperture ovoid, with peris- 

 tome everted,and 4 to 6 lam. and folds : parietal very 

 large, columellar large, 2 to 3 palatals, and often a 

 callus or "tooth" in the base. armifera, Say. 



— alt. 3 mill, or less 4 



4 alt. 3, diam. 1.7 mill.; conic; whorls 5 to 6, the last com- 



paratively very large, protracted, aperture irregularly 

 triangular, with the peristome everted and continuous- 

 or nearly so; parietal lam. very large; columellar per- 

 pendicular, deep seated ; palatals two, the inferior ob- 

 lique, contracta, Say 



— alt. 2.5 mill, or less; last whorl not protracted. 5 



5 cylindrical with apex obtuse; parietal lam. large, bifur- 



cate in front; columellar, and 2 palatal fold?, the infe- 

 rior longer; a high, tooth-Iiks fold in the base; pa- 

 latal wall, behind the aperture, with a high, oblique 

 crest; alt. 2, diam. i mill. holzingeri, Sterki 



