430 PROCEEDINGS OF THE ACADEMY OF [May, 



the soulh side of the river at Paint Rock, frequently reaching 22 

 and 23 mm. in diameter. Both here and at Bluff mountain a 

 peculiar form was found with more convex base, not excavated 

 around the umbilicus, and approaching 0. mgeli W. G. B, Many 

 of the specimens from these localities were quite green. Found 

 also at Tyson's, Potato Top, Ivy river, Toe river, Wilson's and 

 Cat-tail. 



Omphalina andrewsse Pilsbry. 



Very rare, apparently at about the extreme of its northern 

 range, but quite typical. Mt. Mitchell, 2; Wilson's, 1 ; Potato Top> 

 2, and Tyson's, 1. 



Vitrinizonites latissimus (Lewis). 



This species, which was not uncommon on Mt. Mitchell, was 

 found only sparingly at other localities. Those from Bluff moun- 

 tain were considerably larger than those from Mitchell, reaching 

 1 9^ mm. in diameter. It occurred also at Paint Rock, south side ; 

 Tyson's, Wilson's, Meadow Cove and Bee Tree creek. 



Vitrea carolinensis (Ckll.). 



Vitrea carolinensis 01^11., Nautilus, XIT, p. 120. 



Zonites carolinensis Ckll., Biuney, Bull. M. C. Z., XXII, p. 167, PI. 

 Ill, fig. 7. 



The type specimens as described by Cockerell have 5 whorls with 



a maximum diameter of 10 mm. This form occurred in 1901 only 



at Paint Rock. It is not found in the Great Smoky mountains, 



and from present information it seems to be a rare form of very 



limited distribution. 



Vitrea carolinensis wetherbyi Ckll. 

 Nautilus, XIV, p. 45 (1901). 



Pamt Rock, Bluff mountain, Tyson's, Wilson's, Mt. Mitchell, 

 Cat-tail, Pinnacle of the Blue ridge. Toe river and Potato Top. 



In the report of the expedition of 1899 the specimens of V. 

 carolinensis were found to belong to a small race, ranging from 5^ 

 to 7 mm. in diameter. Cockerell has since distinguished it under 

 the above varietal name. With the exception of some from Paint 

 Rock, all the specimens collected in 1901 belong to this smaller 

 variety, which, though not found anywhere in abundance, occurred 

 in nearly every locality. It is intermediate betAveen typical V. 

 carolinensis and V. indentata. 



