252 The land and freshwater shells of India. [No. 4. 



tomatous shell was only met with at one spot on limestone rocks, 

 near the Coal mines, where it did not seem very rare. 



Btreptaxis. Gray. 



45. S. Petiti, Gould. — Maulmein. Tenasserim valley. Common. 



Vitrina. Draparnaud. 



46. V. Birmanica, Pkilippi, was not met with by me. 



Cryptosorna. Mihi, n. g. 

 Testa vitrinse simile, sed robustiore. Peristomate obtuso hand 

 tenue. Animale, penitus intra testam retractile, et in sestivationis 

 tempore, solido epiphragmate obtecto. 



47. C. prsBstans, (Vitrina prsestans) Gould. — Maulmein. Mar- 

 taban. Tenasserim valley. — I have separated this shell from Vitrina, 

 as the animal is perfectly retractile, and the peristome is thicker 

 than in Vitrina proper, and not membranous. It is common in 

 holes in laterite at Martaban and not rare throughout the Tenas- 

 serim Valley. Its colour is a bay olive Cajiput green. 



Succinea. Draparnaud. 



48. S. semiserica, Gould. — Tavoy. Tenasserim Valley. Not 

 rare. 



49. S. (ined.). — Rangoon. A small species, rather rare. 



Bulimus. Scopoli. 



50. B. perversus, var. atricallosus, Gould. — Tenasserim Valley. 

 Common. Dextral and sinistral shells occur in equal numbers. 



51. B. Janus, Pfr. — Procured alive from dealers in Mergui, aud 

 said to come from the neighbourhood. Dextral and sinistral shells 

 equally common. 



52. # B. Theobaldianus, B. — Tanglaw. Very rare. 

 53. # B. putus, B. — Akowtong. Rather rare. 



54. B. insularis, Ehr. — Below Ava. Procured abundantly by 

 Mr. Oldham. 



55. B. gracilis, H. — A little shell which seems to be this species 

 is common from Thaiet-mio to Tavoy. 



56. B. nioniliferus, Gould. — Not met with by me. 



