AURICULID^. 127 



Pupa exigua, Gould in Bost. Jotirn. iii. p. 398. pi. 3. f. 20 ; Rep. 



Massach. p. 191. f. 120. 

 Carychiiun exiguum, Pfr. in Wieqm. Arch./. Nat. 1841, i. p. 224. 

 " Kiist. Auric, p. 61.' t. 1. f. 13, 14. 

 Gould in Binn. Terr. Moll. Tin. St. ii. p. 288. 

 Jay, Catal. 1850, p. 2G3. n. 6122. 

 Stimpson, Shells of New England, p. 52. 

 Frauenf eld in Verh. Zool. Bot. Ver. Wien, iv. p. 10. 1. 1. f. 1. 

 H. and A. Adams in Proc. Z. S. 1854, p. 33. n. 2 ; Gen. rec. 



Moll, ii. p. 242. 

 Pfr. Syn. Auric, n. 179; Mon. Auric, p. 165. 

 Frauenf. Sitz. 1856, p. 12. 

 Bulimus exiguus, Binney, Terr. Moll. U. S. ii. p. 286. pi. 53. f. 1. 



Hab. United States : Vermont, Pennsylvania, Ohio, Arkansas. 



10. Carychium alpestre. 



Shell smooth, white, shortly conic, one-toothed ; aperture 

 pyriform, reflexed, slightly impressed on the external margin ; 

 labium rather circular, closely joined with the peristome on the 

 middle of the whorl ; first four volutions rather convex, the 

 fifth ventricose, imperforate. Height 1^, breadth 1 mill. (Fr.) 



Carychium alpestre, Freyer, Sitz. Akad, Wiss. 1855, p. 19. f. 2. 

 Frauenf. Sitz. 1856, p. 21. 

 Pfr. Mon. Auric, p. 198. 



Hab. Cavern Dioja Grica and others in Camiolia. 



11. Carychium Frauenfeldi. 



Shell white, shortly conic, ribbed obliquely ; whorls convex, 

 gradate, the sixth ventricose, slightly umbilicated ; first and 

 second whorls smooth, the third narrower than the second ; 

 aperture broad, rounded at the outer side ; peristome reflexed ; 

 labium circular; labrum slightly impressed, sharply lobate 

 above, gradually flattened towards its insertion ; parietal la- 

 mella strong, tooth-shaped, placed near the columella. Height 

 2, breadth 1| mill. (Fr.) 



Carychium Frauenfeldi, Freyer, Sitzungsber. 1855, p. 19. f. 3. 

 Frauenf. Sitz. 1856, p. 16. 

 Pfr. Mon. Auric, p. 199. 



Hab. Several caverns in Camiolia. 



12. Carychium amcenum. 



Similar to C. alpestre, but distinguished by its toothless longi- 



