BY EDGAR A. SMITH. 15 



the latter term for the fragilis group of species, instead of 

 further burdening science with a new name. 



Oonchologically the two forms are, in my opinion, inseparable 

 subgenericall}^ and M. Bouvier*, who has studied the anatomy 

 of both, although pointing out differences in the genitalia, does 

 not appear to have considered them sufficient for generic or sub- 

 generic distinction. 



In conclusion it may be of interest to point out that the proper 

 name to apply to the New Zealand species is Amphihohi crenata, 

 as the following synonymy will shew :— 



1784 — Limax crenala, Martyn, Univ. Conch. Vol. ii., pi. 69. 



1789 — Bulimns avel/ana, Bruguiere, Ency. Method, f Vers. 

 Vol. i. p. 297. 



1790— Helix avellana, Gmelin, iSyst. Nat.* p. 3640. 



* Bull, Soc. Philom, Paris, ser.8. Vol. pp. 146-153. 

 t The correct dates of those works have been kindly supplied to me by Mr. 

 C Davies Sherborn. 



