FOUND IN THE ENVIRONS OF LONDON. 121 



ANODON FRESH-WATER MUSSEL. 



Anodon cygneus, Swan Fresh-water Mussel Hampstead 

 Heath, and Thames at Woolwich, fine 

 (J. C.) Surrey and Croydon Canals, 

 ( T. B.) (D. C.) In ponds &c. at El- 

 tham and Lee (C. F.) 



. RIYER-MUSSEL. 



1 1 . Mysca Pietorum, Painter's Mussel Surrey and Croydon 

 Canal (T. B.)(D. C.) New River, and 

 Thames above Hammersmith Bridge 



(D. C.) (J. C.) 



1C. Mysca ovata, Oval River-Mussel Surrey Canal, (T. B} 

 (D. C.) In the Thames and New River 



LIMACELLUS SL UG-SHELL. 



Limacellus variegatus, Variegated Shell-Slug In gardens, 

 under stones, everywhere. (T.B.) (D.C.) 



TESTACELLUS SL UG-SHELL. 



1 (.'. Testacellus Scutulum, Shield Slug-shell In a garden at Lam- 

 beth (Sowerbu). In the kitchen and 

 forcing gardens attached to the Royal 

 Palace at Kensington 



(London 's Mag. of Nat. Hist.) 



. GLASS-BUBBLE. 



Vitrinapellucida, Transparent Glass-Bubble Among decay- 

 ed leaves in Norwood and Darent Wood 

 (D. C.) On a bank top of Croome's Hill, 

 leading to the Vale, Greenwich (T. B) 



HELIX SNA IL-SHELL. 



23. Helix nemoralis, Girdled Snail-shell, \ In hedges and on 



24. Helix hortensis, Garden Snail-shell, 5 banks everywhere. 



M 



