SIKES : THE NON-MARINE MOLLUSCA OF TOURAINE. 



173 



Of the 63 species (exclusive of slugs which arrived home too 

 decomposed for identification) that I took in the course of a fortnight 

 29 were land and 34 freshwater species. 



As to the geology of the Departments worked, I append the 

 formation, but as I naturally worked as close to the rivers as possible, 

 the weather being so dry, not much value can be attached to it. 



At Loches (Indre-et-Loire), over the Eocene formation, there is a 

 thick stratum of yellow micaceous chalk, in which many Troglodytes 

 have carved out their houses, as at Saumur, Ponce, etc. At Amboise 

 this micaceous chalk is of a grey colour. 



LoiRET Dept. LoiRET Miocene (=L. in Catalogue). 



Oligocene (=L. et C). 



Do. ( Do. ) 



Upper Chalk (=1. et L ). 



( 



Do. 

 Do. 



Do. 



Eocene ( 



Upper Chalk (=L). 



Eocene (=E. et L.). 



Do. ( Do. ). 



Upper Chalk (=E.). 

 I have only to add that all the shells were, as usual, submitted to Mr. 

 J. W. Taylor, who kindly confirmed or altered my conclusions, 



ZOTSHTWJE. 



Vitrina diaphana (Drap.) 



Hyalitiia crystallma (Muller) 

 Hyalinia hicida (Drap.) 



Hyalmia cellar ia (Muller) 

 Hyalinia nitidula (Drap.) 

 Zonif aides nitidus (Muller) 



Vendome, L. et C. ; among castle 

 ruins, Bonneval, E. et L. ; Ev- 

 reux, E., in beech wood with 

 H. pomatia, H. aadeata, etc. 



Glion, L, in rejectamenta of River 

 Indre. 



Vendome, L. et C. Var. obsairata 

 Porro ; among castle ruins, 

 Montresor, I. et L. ; on castle 

 walls, Bonneval, E. et L., Char- 

 tres, E. et L., and Evreux, E. 



Montresor, I. et L., with H. lucida, 

 on castle walls. 



Loches, I.etL.; Bonneval, E. et L.; 

 Evreux, E. 



Amboise, I. et L., in marshes by 

 R. Loire ; Glion, I. 

 Endodontid^. 



Fyra7nidula rotundata (Miiller) .Loches, I. et L. ; var. turtotii 



Fleming, in forest of Loches. 



