1SG-3] Land and Freshwater Shells from the Shan States. 273 



Notes on a collection of Land and Freshwater Shells from the Shan 

 States. — Collected by F. Fjedden, Esq., 1864-65. — By W. Theobald, 

 ■Junior, Esq. 



[Eeceived 17th July, 1865.] 

 Mr. Fedden having kindly placed in my hands for examination a 

 small collection of shells from the Shan states, I am led to offer the 

 following brief remarks, though I have not the requisite time at 

 my disposal at present, to describe the many novelties which the 

 collection contains, most of which, however, Mr. Benson will shortly 

 describe in the Annals of Natural History. Although the condition 

 of many of the specimens is very poor, for purposes of describing 

 specific characters, and many species are represented by a single 

 individual, still the collection affords conclusive evidence of the great 

 richness in terrestrial mollusca of the region where it was made, and 

 interesting proof of the distribution of some shells, hitherto rather 

 scarce in Indian collections. 



Fam. MELANIADiB. 



1. 1 Melania iuberculata, Mull. Species. 



Large and fine ... 1.90 X 0.60. 



2. 2 M. variabilis ... Common. Melania, 2. 



Of this melania there are five marked varieties, some of which 

 could doubtless be separated specifically by many systematists. 



3. 1 Glabra. A smooth var. from the tepid springs of Nam-moo. 



This var., in common with all the others, has the apex but 



little eroded, and differs but little from the ordinary smooth 



var. found in Pegu and Bengal. 



An average specimen measures 2.00 X 0.75, the measurement being 



taken along the long axis of the shell, and the transverse diameter of 



the last whorl. 



2nd. Vittata. This var. is also smooth, but with more convex whorls 

 than the last. The shell too is paler, with a dark median stripe becoming 

 obsolete on the last whorls, but well marked on the earlier ones. 

 Average size 2.00 X 0.75 



3rcZ. Turrita. A black turrited var. sometimes slightly eroded at the 

 -extreme apex, and with the whorls ornamented with two or more, 



