24 RAMBLES IN SEARCH OF SHELLS. 



glossy shell, prettily mottled with wood brown upon 

 a lighter ground colour. The shell is also more solid, 

 and has the lip thick, white, and reflected. It cannot, 

 however, be considered common in gardens, at least 

 in London, for it requires more moisture and shade 

 than is generally found there, and is more frequently 

 met with in copses, amongst nettles, and upon alders 

 by the river side. It has been found, nevertheless, 

 at Hammersmith, Fulham, Charlton, and Battersea. 

 We have referred to H:hortensis and H. nemoralis as 

 distinct species, but whether they are so has long 

 been a matter of controversy amongst conchologists. 

 Linnaeus united them ; Miiller separated them. In 

 modern times Messrs. Forbes and Hanley agree with 

 the former, and Dr. Gray with the latter. Mr. Norman 

 contends stoutly that they are not the same species, 

 and his principal reason is that nemoralis invariably, 

 but hortensis never, has a calcareous and frequently 

 coloured deposit on the columella. We have been 

 hitherto inclined to take Mr. Norman's view, in 

 further confirmation of which we have noticed that 

 nemoralis always has a black lip (PI. I., fig. 2), 

 hortensis a white one (PL I., fig. 1). But Mr. 

 Gwyn Jeffreys to whom all conchologists are in- 



