296 BIBLIOGRAPHY OF 1877. 



Acme gracilis nov. sp., from Tolmein in Kiistenland. It is 

 diagnosed from A. fiisca and from A. subdiaphana Benoit. 



Clessin (S.) — Mollusca from the Zillerthal in Tyrol.— 



Mollusken aus dem Zillerthal in Tyrol. — Nachrichtsblatt d. 

 Deuts. Mai. Ges., April and May, 1877, ix., pp. 43 to 44. 



Two species of Helix, 3 of Clausilia, 2 of Vitrina, and 4 of 

 Hyalina are mentioned. 



Clessin (S.) — A New Species of Pupa. — Eine neue Pupa. — 

 Nachrichtsblatt d. Deuts. Mai. Ges., June and July, 1877, 

 ix., pp. 49 to 5 r. 



Pupa ( Vertigo) Heidi, fi-om the rejectamenta of the Danube 

 near Ratisbon. 



Crosse (H.) and Fischer (Dr. P.) — Diagnosis of a New 

 Mexican Choanopoma. — Diagnosis Mollusci novi, 

 reipublicae Mexicanae incolae. — Journal de Conchyl., Oct. 

 1877, 3e serie, tome xvii., 362. 



Choanopoma Chiapase/ise from Chiapas (F. Sumichrast). 



Crosse (H.) and Fischer (Dr. P.) — Note on Azeca mono- 

 donta de Folin and Berillon. — Journal de Conchyl., 

 Oct. 1877, 3e serie, tome xvii., p. 397. 



MM. de Folin and Berillon have instituted a new subgenus 

 Cryptazeca for this species, which they describe as new from near 

 Bayonne. 



Delaunay (E.) — Nev/ Species of Vitrina. — Description d' 



une espece de Vitrine des environs de Cherbourg (Manche). — 

 Journal de Conchyl, Oct. 1877, 3e se'rie, tome xvii., p. 363 

 and plate xi. 



Vitrina Baudoni (pi. xi., f. 5) resembles V. pellucida and the 

 var. subglobosa Mich. 



J.C, ii., Oct., 1S7L> 



