INDIAN REGION. 



Seychelles (No. 31 of Map), 



Parmacella Dussumieri. Bulimus ornatus. 



Helix unidentata. „ fulvicans. 



„ Studeri, Cyclostoma insulare. 



„ Souleyeti. „ pulchrum. 



„ Tranquebarica, Cj-clotus conoideus. 

 Streptaxis Souleyeti. 



99 



Two large species of Achatina [fulica and panthera) abounding 

 in the coffee plantations, are believed to have been introduced. 

 The annual fall of rain in Mauritius is 35-25 inches. 



Bourhon (No. 33). 



Helix caelatura. 

 „ detecta. 

 „ deUbata ? 



Helix tortula. 



,, Brandiana. 

 Pupa Largillierti— Mauritius. 



Rodriguez. 

 Cyclostoma articulatum, Madagascar ? Sti-eptaxis — pyrif ormis. 



No. 34. Kerguelen's Land. Helix Hookeri was collected at 

 this island when visited by the Antarctic Expedition. 



6. Indian Eegion. 



Proceeding eastward, in Asia, the species of Achatina, Pupa^ 

 Clausilia, Physa, Limax, and Cyclostoma rapidly diminish or 

 quite disappear. Helices of the section Nanina become plenti- 

 ful, amounting to 150 species, and Bulimulm and Cyclophorus 

 attain their maximum. Leptopoma, and Pupina are peculiar to 

 the Asiatic Islands. 



Our catalogue of Indian land shells must be very imperfect, 

 including only about 180 HeUcidce and 50 Cyclostomidce. A very 



f2 



