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ON THE ANATOMY OF SOME TASMANIAN SNAILS. 

 By C. Hedley, F.L.S., Corr. Mem. 



(Plates ii. and in.) 



The material for this paper was chiefly collected by myself 

 during a short holiday excursion to the Island of Tasmania. To 

 Mr. W. F. Petterd, of Launceston, the well-known conchologist, 

 and to Mr. W. R. Dyer, of Scottsdale, I am under great obligations; 

 without the kind assistance of these gentlemen my scientific booty 

 would have been but small. 



As far as the shells are concerned, the molluscan fauna of 

 Tasmania has been closely studied, but information regarding 

 structural details of the animals is much needed. For until we 

 have acquired this knowledge, no classification worthy of the 

 name can be constructed. Full particulars of the shells whose 

 soft parts I am about to describe will be found in the Monographs 

 of Dr. Cox, Messrs. Legrand and Petterd, and further notices in 

 the writings of Reeve, Semper, Quoy and Gaimard, Tenison- 

 Woods, Tryon, Pilsbry, &c. It will therefore be unnecessary for 

 me to add bibliographical references in dealing with these well- 

 known species. 



Bulimus dufresni, Leach. 



This handsome shell has attracted the notice of every scientific 

 visitor to the island. The figure of the animal in the " Voyage 

 of the Astrolabe," Vol. n, pi. x., fig. 1, is unsatisfactory, showing 

 as it does a well-marked pedal groove where none exists. I have 

 therefore re-figured it in the accompanying plate. From a 

 specimen of the small variety common round Hobart I drew up 



