288 JOURNAL OF CONCHOLOGY. 



p.. fontinale var. henslowana (Shepp.). Cromford Canal 

 (H. E. Craven). 



P. fontinale var. cinerea Alder. Stanton-in-Peak (H. 

 Milnes) ; pond near Matlock (H. E. Craven). 



P. pusillum (Gmelin). Winster (H. Milnes); pond at 

 Bonsall Moor (H. E. Craven) ; Monsall Dale (T. Hey, 

 J. of Conch. ^ vol. vi., p. 117). Not frequent. 



P. pusillum var. obtusalis (Lam.). Winster (H. Milnes). 



P. nitidum Jen. Via Gellia (H. Milnes); Cromford (T. 

 Hey, J. of Cotich.^ vol. vi., p. 117). Not common. 



P. nnilium Held. (= P. roseum Jeff.) See J. of Cotich., 

 vol. vi., p. 117. Mr. Hey says, 'I have certainly found 

 this in the county, but am uncertain of its locality.' 

 Matlock (H. E. Craven). 



Dreissensia polymorpha (Pall). Canal at Willington 

 (J. Hagger) ; Butterley (T. Hey). Local, but abundant 

 where it occurs {/. of Conch. ^ vol. vi., p. 117). 



BIBLIOGRAPHY. 



New List of Nottinghamshire Mollusca. — Mr, 



J. W. Carr, M.A., has just published a most useful book, 

 entitled 'A Contribution to the Geology and Natural History 

 of Nottinghamshire' (1893, small Svo., paper boards, 96 pages, 

 price 2/-), to which Mr. B. Sturges Dodd contributes (pp. 

 66-75) a revised list of the mollusca; full details of localities 

 are given, and one hundred and nine species and a large 

 number of varieties are included. — W.D.R, 



J.C. vii, Oct. 



