X L V 1 1 . .M O L Iv U S C A , VII. 



Cyclophoridae (/;/- part). 



By Lt.-Colonei. H. H. Godwin-Austen, F.R.S. 



This contribution completes two species of operculated land 

 shells, collected in the Abor Hills, belonging to genera of Cyclo- 

 phoridae as noted in the Records of the Indian Museum, vol. viii, 

 pt. vii, p. 493. 



In the subfamily Cyclophorinae will be found the species of 

 Raphaulus and LagocJieilus ; those of Alyceinae were given on 

 p. 503. Diplommatininae and Pomatiasinae are now treated of. 



In LagocJieilus and Pomatias, before anything could be done 

 with species from the Tsanspu valley, it was necessary to go 

 through collections made by me when in charge of Survey opera- 

 tions in the Assam Hill Ranges, in vSikhim and the Eastern Hima- 

 laya. Some of these had scarcely been looked at since the day they 

 were found. Several new species have been figured and will be des- 

 cribed elsewhere. This preliminary work somewhat delayed the 

 publication of results, but it has added much to our knowledge of 

 distribution and it has also shown that in the Abor portion of the 

 Eastern Himalayan Range new forms of the operculate land mol- 

 lusca are quite as numerous as they are in the Helicidae and 

 Zonitidae. 



The number of species in the Cyclophoridae now recorded 

 belong to the following genera and subgenera : Cyclophorus 2 

 [Myxostonia did not occur), Glossostylics 2, Spiraculum 6, Pterocy- 

 clos 5, Alycaeus 2, Cycloryx 2, Dioryx 5, Raptoniphalus 4, Raphaulus 

 5, Streptaul'us 2, LagocJieilus 2, Diplonimaiina 4, Pseudo pomatias 2, 

 Eupomatias 2, making a total of 45. 



For about half of these I am indebted to Captain Oakes and 

 the officers of the Survey with the Miri Political Mission, for the 

 rest to Mr. S. W. Kemp and those with the Abor Expeditionary 

 Force who assisted him. Officers and Civil Assistants of the Indian 

 Survey have done much in the past for Natural History, especially 

 in Conchology, and an expression of gratitude from workers in 

 this branch of Natural History is due to those whose names appear 

 in these contributions for the valuable help they have rendered. 



The distribution of the land moUusca is so interesting and 

 important in connection with the geography of India in Tertiary 

 and even earlier times. The great main valley's of the Eastern 

 Himalayas have each a markedly different moUuscan fauna, but 

 unfortunately our knowledge of them is very incomplete. The 



