1866.] Contributions to Indian Malacology. 143 



approaches the S. Indian forms of the corrugatus type (Lamarck's) in 

 outline, and is barely distinguishable from two shells in the Asiatic 

 Society's collection, which are labelled from Ceylon. It is a stouter 

 shell than the Lamarckian corrugatus* 



No. 16. — Unio Nagpoorensis, Lea. Ambajiri tank, Nagpoor. 

 Lea, Jour. Acad. Nat. Sci. Phil. Ser. 2, IV. 270, pi. 45, f. 150. 



This species is barely separable from some varieties of Unio favidens, 

 Bs. It is, however, a rounder, thinner shell, forming a link, both in 

 character and locality, between that species and Unio corrugatus. 



No. 17. — Unio Wynegungaensis, Lea. Wynegunga river, east of 

 Nagpoor. 



Lea, Jour. Acad. Nat. Sci. Phil. 2nd Ser. IV, 271, pi. 45, f. 151. 



Except in greater thickness, and stouter hinge teeth, there appears 

 no distinction of the slightest importance between this " species" and 

 the last. The type abounds in the Godavery and its feeders, and 

 is, as usual, variable. The locality given by Lea is Wynegunga 

 river, East of Nagpoor in the Deccan, Bengal, which is equivalent 

 to talking of Philadelphia in New England, Virginia. However it is 

 hardly fair to expect American naturalists to have accurate information 

 on Indian geography, when an English naturalist of repute confounds 

 the Khasi hills in N. E. India with the Nilgiris in the S. W., and 

 when a second, in a work solely devoted to Indian zoology, perhaps 

 the most important work on any branch of Indian Natural History, 

 exclusive of botany, ever published in England, confounds Saharun- 

 poor with Serampoor on the Hooghly. After this, the discovery made 

 by the Times newspaper, a few years ago, that a spur of the Hima- 

 layas is visible from Calcutta is not so surprising. A distinguished 

 French naturalist, five or six years since, placed Kattiawar in Cochin 

 China, but it is only fair to add that this was before the French expedi- 

 tion to the latter country, and that French naturalists have already done 

 not a little towards making us better acquainted with the Molluscan 

 fauna of that little known region. 



* Since writing the above, I have learned that the locality is correct. The 

 shell was collected by Dr. Bacon. 



