Oldham : Cheshire Land and Fresh-7vater Molhisca. 



261 



Castle, September, 1900 ! Macclesfield Canal, near Astbury, 

 July, 1903 ! (CO.). 



Anodonta cygnea (L.) v. rostrata Ross. Tabley Pool, Feb- 

 ruary, 1903 ! (CO.). 



A?iodonta cygnea v. incrassaia Shepp. Holmes Chapel !' 

 (H.G.B.). 



Anodonta anatina (L.). Booth's Mere, Knutsford ! Pond, 

 Alderley Edge! (H.G.B.). Redes Mere! (CO.). 



Fam. CYRENID.E. 



SphcBriitm rvcicola (Leach). Shropshire Union Canal, Beeston 

 Castle ! (CO.). 



Sphceriimi corneiim (L.) v. scaldiana Norm. Canal, Beeston, 

 Castle ! September, 1900 ! (CO.). 



SphcBrium corneiim v. nucleus Stiider. Rowton Grange, near 

 Chester! (H.G.B.). 



SphcBrmm lactistre (Miill.). Brereton Pool, November, 1896 ! 

 Alderley Edge, March, 1899 ! Congleton, Septem.ber, 1900 ! 

 Shells with straw-coloured epidermis associated with S. co7'- 

 neum of the same colour, Knutsford, November. 1901 ! (CO.). 



SphcBniim laciistre v. ryckholti Norm. Mollington, near 

 Chester! (H.G.B.). 



SphcBviiim lacustre v. rotunda Jeff. Rowton, near Chester I 

 (H.G.B.). 



SphcBrium lacustre v. brochoniana Bourg. Bache, near 

 Chester ! (H.G.B.). Shropshire Union Canal, Beeston Castle, 

 September, 1900 ! Trent and Mersery Canal, Sandbach, Sep- 

 tember, 1900 ! (CO.). 



SphcBrium pallidum Gra^^. Abundant in Trent and Mersey 

 Canal, near Sandbach, September, 1900 ! (CO.). 



Pisidium amnicum (Mlill.). Tarvin ! (B.R.G.). Shropshire 

 Union Canal, Beeston Castle ! Middlewich ! (CO.). 



Pisidium henslowianum (Shepp.). Pond, Dean Row, Aug- 

 ust, 1899 ! Shropshire Union Canal, Beeston Castle, Septem- 

 ber, 1900 ! Macclesfield Canal, Congleton, September, 1900' 

 (CO..). 



Pisidium nitidum (Jen.). Stalybridge ! (C. H. Moore, 'J. 

 of C, vol. X., p. 336). Knutsford, 1901 ! Mobberley, 1902 1 

 Mouldsworth, 1902 ! (CO.). 



Pisidium gassiesianum Dupuy. Alderle}^ Edge, 1898 i- 

 Wilmslow, 1899 ! Tabley Pool, 1903 ! (CO.). 



1908 July I. 



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