232 Terrestrial Shells collected in New Granada. 



Habitat. — Marmato, and mountains above it, — also near Sala- 

 mina, and below Ervd, towards Fresno. 



H. Ore as var. white, — with very thin pale brown epidermis. 



Station. — Same as the last. 

 Habitat. — Tacon, above Marmato. 



23. H, atrata ? Pfr. Proc. Zool. Soc. - - . . 1850. 

 Station. — Same. 



Habitat. — Marmato and Tacon, 



24. Helix SUbplanata ? (Caracolla) Petit in Revue Zool. p. 238. 1843. 

 " in Guer. Mag. de 



Zool. t. 68. - - 1843. 



We cannot agree with Pfeiffer and Eeeve in considering this 

 to be a variety of H. labyrinthus Chem. It is much more 

 nearly allied to H. plicata Born. Our shell is thin and delicate, 

 in size like Petit's figure above referred to ; the basal margin 

 of the aperture has a lamina next the canal, and one rather 

 broad grooved tooth beyond, with a small narrow lamina or 

 tooth, slightly developed, some distance within the upper lip, 

 visible on the exterior through the shell, — in which latter cha- 

 racter it agrees with H plicata Born. This last mentioned tooth 

 is shown in Lea's figure of Carocolla Hydiana Lea, from Porto 

 Cabello (held to be identical with H. plicata Born), Trans. Am. 

 Phil. Soc. VI. new series, pi. 23. f. 73 a, but is not noted in the 

 descriptions of that shell by Pfr. in Mon. Hel. Yiv. I. p. 398, or 

 Kv. in Conch. Icon. sp. 553. 



Station. — Among dead leaves. 



Habitat. — Marmato. 



25. Helix monile ? Brod. Proc. Zool. Soc. p. 29. - - 1832, 

 planorbis Jay Cat. p. 112. pi. 1, f, 6, 7. - - 1839. 



Station. — Unknown — one dead but perfect specimen only 

 collected. 



Habitat. — Marmato. 



