JACKSON : BIBLIOGRAPHY OF NON-MARINE MOLLUSCA OF LANCASHIRE. 79 



1889. Cockerell, T. D. A. — Variation in the Mollusca. Sn. 

 Goss., 1889, p. 212. 

 Argumentation, supported by references to Avion ater var. tiigra 

 at Warrington, and Amalia g.xgates var. rava from Lancashire. 



1889. Wigglesworth, R. — ^Discovery of Pupa cinerea in Lanca- 

 shire. Sci. Goss., 1S89, p. 281. 

 Near Accrington, where it has been taken four times in twelve 

 years, in a well-wooded, out-of-the-way place, unlikely for introduction. 



1889. Cross, W. M. — Among the Fylde Flowers. Wesley 

 N'litia-alist, 1889, p. 5. 

 Physa hypnorutn abundant in ponds among the dunes at Lytham 

 and St. Annes. 



1889. Williams, J. W. — Land and Freshwater Shells. London. 

 Flafiorbis dilatatus cited at p. 68. 



1889. Taylor, John W. and Roebuck, W. Denison. — Census 



of the Authenticated Distribution of British Land and Fresh- 

 water Mollusca. Land and Freshwater Shells (by J. W. 

 Williams). 

 County records, pp. 95-108. 



1890. Beaumont, C. R. — A Ramble round Daisy Nook. Trans. 

 Rochdale Lit. and Sci. Soc, ii., 1889-90, publ. 1890, p. 67. 



Near Oldham ; Anodonta cygncea, Unio, Lymncea stagnalis in the 

 canal noted. 



1890. Cockerell, T. D. A. — Varieties of Mollusca. Sci. Goss., 

 1890, pp. 4-5. 



Liin7icea peregra var. boissii Dup., Tarleton ; and sole?nia Zgl, 

 Southport. 



1890. Williams, J. W. — Helix hortensis var. trochoidea (Cless.) 

 Sci. Goss., 1890, p. 232. 



At Clayton-le-Moors (R. Wigglesworth) ; locality afterwards cor 

 rected to Simonstone by R.\\\ 



1890. Wigglesworth, R. — Re Helix hortensis var. trochoidea 

 (Clessin). Sci. Goss., 1890, p. 263. 

 Corrects locality ; Simonstone, not Clayton-le-Moors, as stated by 

 Williams. 



1890. Wigglesworth, R. — Banded Cochlicopa lubrica. Sci. Goss., 

 1890, p. 263. 

 Found at Clayton-le-Moors. 



( To he continued). 



