COOPER AND LOYDELL : MIDDLESEX MOLLUSCA. 227 



Yar. albida, Jeff. Queen's River, Bushey Park, and canal at 

 Hackney. 



65. LlMN^A PEREGEE, (MiilL), 



Common and generally distributed. 



Var. inflata, Kob. Moat at Finchley, and West Drayton. 



Yar. ovata, Drap. Busbey Park. 



Yar. acuminata, Jeff. Pond near Ealing. 



Yar. laliosa, Jeif. Hampstead ponds aud the moat at Pincbley. 



Yar. Candida, Porro. Lea Marshes. 



A white-banded specimen is recorded from Hendon (C. C. Fryer, 

 S.G., 1889, p. 259). Of these two last species llich, the dealer, 

 obtained some exceedingly fine specimens, which he retailed as coming 

 from " Hendon " in order to keep the locality secret. 



66. LlMN^A PALUSXRIS (MiilL). 



Harefleld, Uxbridge, West Drayton, near Colnbrook, Staines, 

 Shepperton, Chertsey, Stanwell Moor, near Longford, Lower Halliford, 

 Thames at Teddington, Brent near Hendon, Greenford Green, Bedfont, 

 Bushey Park, East Finchley, and Ponders End. It is also recorded 

 for the lower part of the Brent (T. D. A. Cockerell, S.G., 1884, p. 138) ; 

 Twyford (S. C. Cockerell, S.G., 1887, p. 43) ; Enfield (S. C. Cockerell, 

 S.G., 1883, p. 9); Tottenham (Canon Horsley, S.G., n.s., vi, p. 181). 



A white-banded form occurs, with the tj'pe, in the Brent near 

 Hendon, and also in Hackney Marshes. 



67. LiMNiEA TRDNCATULA (MiilL). 



Uxbridge Marsh, near Colnbrook, near Longford, Chertsey, West 

 Drayton, between Hampton Court and Kingston Bridge, Staines, 

 Hendon, Finchley Common, and Ponders End. Other recorded 

 localities are: Twickenham (S. C. Cockerell, S.G., 1885, p. 116), 

 Hyde Park (T. D. A. Cockerell, S.G., 1884, p. 236), Hampstead 

 Heath (J. W. Williams, S.G., 1889, p. 164). 



Yar. elegam, Jeif. Thames at Brentford and Finchley Common. 



Yar. albida, Jeff. Frayswater at Uxbridge. 



68. LlMN^A STAGNALIS (L.). 



Harefield, Uxbridge, West Drayton, Staines, Hendon, Finchley, 

 Ponders End, and many other localities. 



A prettily banded form has been taken at Tottenham by Canon 

 Horsley. A turreted example comes from the same locality. 



69. Amphipeplea glutinosa (MiilL). 



Is recorded by Daniel Cooper, on the authority of James Garter, as 

 occurring " on leaves of NymplKza Intea at Stanmore." It has also 

 been found in a Holocene deposit at Staines by one of the present 

 writers. 



70. Planorbis corneus (L.). 



In all the rivers and most of the ponds and canals. 

 Yar. albina, Moq. Fulham, in the Thames backwater. 



