70 



The Naturalist. 



Elymus arenariiis. Mawbray, {M). " ? " Top. Bot. 

 Hordeum murinum. Flimby. {M). do. 

 Cbara flexilis. Murton Moss, {D). 

 C. foetida. Near Caldbeck. 

 C. hispida. Harris Moor, (Z>). 



Westward Vicarage, Oct. 1st, 1878. 



LIST OF THE LAND AND FEESH WATER MOLLUSCA 

 OF HULL AND VICINITY. 



By J. D. BUTTERELL. 



The following list, wMcli is the result of several seasons' collecting, 

 must not be considered as an absolutely exhaustive one, and further 

 research will no doubt add some of the numerous varieties, as well 

 perhaps as such species as Ancylus fluviatilis, Helix rufescens^ and 

 Cochlicopa tridens^ at present conspicuous by their absence. 



The district explored is chiefly the low-lying country in the imme- 

 diate neighbourhood of Hull, with some places in Holderness ; Hessle, 

 Brough, Brantingham, Welton and Slddby, which are situated on the 

 chalk on a range of hills bounding the district on the west. The river 

 Hull, several canals, and numerous wide drains supply a home for 

 the aquatic species. Leven canal, commencing at Leven, runs through 

 a dark soil of somewhat peaty texture for a .distance of three miles, 

 and joins the Hull near Beverley. The Barmston drain, which begins 

 at BaiTQston, between Hornsea and Bridlington, traverses the county 

 in a south-west direction, going through Beverley to Hull ; where 

 quoted, the part within three miles of Hull is generally alluded to. 

 Spring Dyke (which is so prolific in individuals that its surface is in 

 some parts quite brown with numbers of FlanorUs spirorbis) runs from 

 the waterworks at Springhead to Hull. 



LIST OF SHELLS TAKEN NEAE HULL AND IN HOLDEENESS. 



Sphgerium corneum. ' Barmston and Skidby drains, Brantingham, 

 plentiful. 



S. lacustre. Spring Dyke, specimens rather small, whitish and semi- 

 transparent. 



Pisidium amnicum. Barmston Drain, Leven Canal. . 



P. fontinale, var. Henslowana. Leven Canal. 



P. pusillum. Leven Canal and Keyingham Drain. 



