224 PROCEEDINGS OF THE MALACOLOGICAX SOCIETY. 



33. Htgromia geanttlata (Alder). 



Abundant in the valley of the Colne ; it also occurs at Bedfont, 

 Acton, and Ponders End. 



34. Htgeomia hispida (L.). 

 Common all over the county. The type is the prevalent form, 

 but var. hispidosa, Mouss., also occurs. We have not met with 

 characteristic examples of var. suhglohosa, Jeff., which is now con- 

 sidered a distinct species (= sericea, Drap.). This form is recorded 

 for Hammersmith (B.C., i, p. 199). 



35. Htgeomia eufescens (Penn.). 

 A common shell everywhere. The vars. rubens, Moq., albocincta, 

 Ckl., and alha, Moq., are found with the type in various localities. 

 A sub-scalariform specimen comes from the side of the Thames near 

 Brentford. 



36. ACANTHINULA ACTTLEATA (MiilL). 



Harefield, on dead holly-leaves. It has also been recorded at 

 Twickenham (Cockerell, Zoologist, xliii, p. 340). 



37. Yallonia pulchella (MiilL). 



Yiewsley. Typical V. pulchella is decidedly rare in Middlesex. 

 In deference to current opinion we give three species of Vallonia, 

 though we should prefer to consider them forms of one species. 



38. Vallonia excenteica, Sterki. 



Harefield, Hampton Court, and Ponders End. Less frequent than 

 V. costata. It is also recorded for South Kensington and Ealing 

 (B. B. Woodward). 



39. Yallonia costata (MiilL). 



Harefield, Uxbridge, Yiewsley, near Colnbrook, Hampton Court, 

 Hampton Wick, Bedfont, and Acton. 



40. Helicigona lapicida (L.). 



Mr. Jackson (J.C., xi, p. 345) possesses several white examples of 

 this species, given him by Mr. E. D. Darbishire, who stated he collected 

 them on a rough wall in the Zoological Gardens, Regents Park. They 

 were obviously introduced. 



41. Helicigona aebustoeum (L.). 

 Harefield, Uxbridge, West Drayton, near Colnbrook, Staines, 

 Bedfont, Chiswick, and Ealing. It appears to be absent from the 

 lower part of the Lea Yalley, although it lives at Cheshunt in Herts. 



42. Helix aspersa, MiilL 



Abundant everywhere. A reversed specimen was found in 

 H. Adams' garden, Netting Hill (Harting, "Eambles in search 

 of Shells," p. 23). 



43. Helix nemoealis, L. 



Eound in most parts of the county. The pink form (var. ruhella, 

 Moq.) and the yellow one (var. lihellula, Risso) are equally common. 



