3302 Mollusks. 



or fin throughout nearly their whole length, attached to the back and belly. As an 

 article of food the flesh of this fish is esteemed, and by those who partook of it in com- 

 mon with myself, it is considered, in point of flavour, to be intermediate between the 

 sole and turbot. Some of our older fishermen inform me that another of this species 

 was caught here about twenty-five years ago, having been left by the tide in a pot or 

 hollow in the rocks at the back of the present key. — George Harris ; Gamrie, Banff- 

 shire, October 29, 1851. 



Land and Fresh-water Mollusca in the Neighbourhood of Norwich. 

 By W. K. Bridgman, Esq. 



Since the publication of my list in your number for March, 1850 

 (Zool. 2741), we have succeeded in making the following additions. 



Limax carinatus. Catton and Thorpe. Plentiful on the stone banks 

 late in the evening. 



Helix aspersa, var. alba. Thorpe. Along the banks from the Ro- 

 sary to the Asylum ; about thirty specimens. 



Helix aspersa, var. reversa. A fine specimen of this singular and 

 odd-looking lusus natunc was found by my eldest son a few weeks 

 since in the above locality, and is now being fed upon Convolvulus- 

 leaves, as the lip is not quite completed. 



Achatina acicula. On a sunny bank near the Thorpe toll-bar. They 

 are found, but rather sparingly, in the loose earth between the stones, 

 and adhering to the roots of grass. 



Planorbis imbricatus. About a table-spoonful of this shell was ob- 

 tained last autumn by bringing home a handful of dead Potamogeton, 

 found floating in a ditch, and washing it in warm water, when the 

 animals, relinquishing their hold, fell to the bottom of the vessel, and 

 were easily separated by straining the water away. Segmentina li- 

 neata I have procured in a similar way in equal abundance, by wash- 

 ing the weeds thrown out from the ditches about this time of the year. 



Carocolla lapicida, as predicted, has been found alive in two widely 

 distant localities, in great abundance. I first found several dead shells 

 on a bank at Thorpe, in the spring of last year, and soon afterwards 

 they were found alive in the adjoining hedges. This summer it was 

 found by one of my sons, in great plenty, at Dunston, about three 

 miles from Norwich ; during a slight shower they were espied crawl- 

 ing on the grass, and along the lower branches of the whitethorn, by 

 the road-side. This appears to be their favourite habitat, for in both 

 instances they were found mostly at the bottom of the hedge and on 



