8 Binney on Terrestrial Mollusks. 



naiTow in proportion to the length of the shell ; tentacles short. 

 CTregarious, inhabiting dry gullies and hill sides ; many specimens 

 found in a cabbage garden." (Thomson). 



This shell varies very considerably in size and in the 

 elevation of its spire. This fact will account for the differ- 

 ence in the figures referred to in the synonymy. That of 

 pi. vi. a, is a perfect representation of what Lea's original 

 specimen would be in a fresh state. 



Helix Californicnsis of Pfeiifer, Chemnitz, and Reeve, 

 are to be referred to this species. Those authors are in- 

 correct in considering H. Nickliniana a variety of H. Cali- 

 forniensis. 



H. arboretormn is placed by Pfeiffer doubtfully in the 

 synonymy of H. Californiensis, while H. nemoraviga is 

 placed among the uncertain species. A fac-simile of Va- 

 lenciennes's figure of the former isi given, pi. 76, fig. 13, 

 and of the latter on pi. 79, fig. 11. 



I have described, under the names of H. redemita and 

 H. intercisa, the shells figured on pi. vi. as varieties of this 

 species. 



HELIX INTERCISA. 



Pr.ATE VI. Figure 1. Middle figure. 



Testa solidissima, luteo-cinerea, apice ruia, globoso-conica ; spira bre- 

 vis; .-^utura impressa; anfractus quinque, convexiusculi, lincis paralk-iis 

 volvciitibus, valde demissis, strias iucreiuentales distinctas intercidL-iitibus 

 notati ; anfr. ultimas globosus, supra peripheriam fascia unica, ruta ob- 

 scurissima ornatus ; apertura luaxime obliqua, forma equi calcei, rotun- 

 data ; labrum albo-c-iiii'reum, incrassatum, subtus reflexiusculum, sub- 

 unidentatum, umbilicum totum tegens ; marginibus approximatis, oallo 

 iuterjunctis. 



SYNONYMS AND REFERENCES. 



Eelix intercisa W. G. Binney, Proc. Acad. N. S. Phila. ix. p. 18, (Oct. 1857); 



Proc. Boston Soc. N. H. vi. p. 156 ; Notes, p. 1. 

 Ilelix Nickliniana var. Binney, Terrestrial Mollusks, ii. p. 120; iii. pi. vi. f. 1. 

 Iccm in medio posita. 



