On neio Land- Shells from the Anddmans and Nicohars. 55 



Fi(/. 10. Diagram to show the replacement of the coenenchymal structure 

 of Parheria by Millarella. a, ccenenchyma continuous ; b, 

 " zooidal tube ; " c, cceueuchj^mal structure breaking up and 

 disappearing ; d, dark shade in the tubules of the coenenchy- 

 mal structure, indicating the presence of MiUarcUa in its minute 

 form, of a brown coloui- ; e, filamentous form ; /', chalk-like 

 portion ; r/, fragments of foramiuiferal detritus ; h, grains of 

 glauconite. 



Budleigh Salterton, Devon, 

 Jmie 1, 1888. 



VIII. — Descriptions of new Land-Shells from the Andaman 

 and Nicohar group of Islands in the Bay of Bengal. By 

 Lieut.-Col. li. H. Godwin-Austen, F.R.S., F.Z'.S., &c. 



My old concliological colleague and friend Geoflfrey Nevill a 

 few months before liis early death sent me his revised and 

 interleaved copy of the Catalogue or Hand-list of the Mollusca 

 in the Indian Museum, Calcutta, of which it was intended to 

 be the second edition ; and this I hope the trustees of that 

 museum will sooner or later have put into type. It contains 

 a mass of new material, references to original descriptions, 

 and a large number of species added to the museum since 

 1S78, and a great number of MS. names given to undescribed 

 forms. Of many of these new Indian species he had sent me 

 typical shells, some of which I have figured and described in 

 ' Land and Freshwater Mollusca of India,' and many I still 

 have by me. From Mr. F. A, de Roepstorff I had received 

 many Andamanese and Nicobar shells, and after that officer's 

 melancholy death by the hands of a sepoy at Camorta, Mrs. 

 de Roepstorff very kindly sent me his large collection of land- 

 shells. With this material I am able to complete the good 

 work begun by Geoffrey Nevill and identify the shells bearing 

 his Mk5. names and describe the same. MS. names, unless 

 thus quickly dealt with, become a terrible source of vexation 

 and worry to future naturalists ; they wander away into col- 

 lections all over the world, are very frequently never published, 

 while some species rejoice in two or more such titles. I 

 therefore in this paper propose to clear off as many unde- 

 scribed shells as I can from the islands of the Bay of Bengal, 

 trusting to be able to figure them in the second volume of my 

 work on Indian Mollusca, and in some cases give some fur- 

 ther account of those I have in spirit. 



