2 2 FITZGERALD : SHELLS OT HARROGATE AND DISTRICT. 



P. carinatus Miiller. — Very local. A few, Staveley Ponds; 

 also in a sub-fossil state on the banks of the river Tutt at 

 Staveley, two feet below the surface. During Sep. of 1887 

 I introduced a number of this species and also P. corneiis 

 into Fullwith Stream. 



P. complanatus (L.). — Local. Asp Pond, Knaresborough 

 (Y.N.U. Trans, part 9) ; Ripley Beck (F.T.W. and F.R.F.). 

 Several specimens of this shell were obtained along with 

 the others previously mentioned, as found in 1885 in a 

 sub-fossil state for some miles distance along the banks of 

 the river Tutt at Staveley, in a deposit two feet below the 

 surface, by my friend the Rev. E. Ponsonby Knubley, M. A., 

 M.B.O.U. ; about the same time he found it also sub-fossil 

 on the site of an old pond at Staveley. 



P. complanatus var. rhombea (Turt.). — Mentioned in 

 part 9 of the Y.N.U. Trans, as occurring near Harrogate, 

 by Lister Peace, 1880. Probably the Ripley Beck is the 

 locality although not stated. I have not found this 

 variety there. 



P. corneus (L.). — By no means a common species. I have 

 found it (three dead specimens) in Staveley Ponds during 

 the autumn of last year. I put a few into the Fullwith 

 Stream, from Ripon Canal. It occurs in a sub-fossil state 

 along the banks of the river Tutt at Staveley. 



P. contortus (L.). — Very local in its distribution. In the Stave- 

 ley Ponds and the pond in Copgrove Wood it is the most 

 numerous species. Occurs sub-fossil along with the other 

 species previously mentioned. A number of these shells 

 in the Staveley Pond are referable to the var. albida. 



Physa hypnorum (L.). — A rather local species frequenting 

 stagnant ponds and ditches. It occurs at Ripley Lake and 

 Rudding. Ditch, Ferrensby (W.N.). 



P. fontinalis (L.). — More generally distributed than the 

 former species. It occurs in profusion in the Staveley Ponds. 

 During August of last year my friend Mr. Chaytor, M.C.S., 



J.C, vi., Jan., 18S9, 



