THE BRITISH NATURALIST. 



[July 



Genus Fhysa, Drap. 



Physa fontinalis, L. — Common in ditches, &c, throughout the county. 

 Var. ihfiata, Moq. — Wollerton. 



Var. oblonga, Jeff. — Lowe describes a var. acuta which may probably 

 be referred to this form. It was found near Lenton. 



Sub-family LIMN^EIN^E. 



Genus Amphipeplea, Nillson. 



Amphipeplea glutinosa, Mull. — "A still sheet of water near the Trent, 

 above the Beeston Ryelands, where it is occasionall)/ plentiful, twenty 

 or thirty specimens having been taken on one day, yet it is 

 frequently difficult to discover a single specimen in a whole morning's 

 search " (Lowe). 



Genus LimnvEa, Bruguiere. 



Limncea peregra, Mull. — Plentiful everywhere. The following list 

 of varieties is doubtless far from complete. 



Var. ovata, Drap. — In the Musco-sic Brook, near Beeston (Lowe). 

 Worksop (Musson). Elksley. 



Var. acuminata, Jeff. — -Worksop (Musson). Elksley. 



Var. intermedia, Fer. — Worksop (Musson). Fledbro', East Drayton. 



Var. oblonga, Jeff. — Lenton (Musson). 



Var. minor, Colb. — Wollaton. 



Var. labiosa, Jeff. — Rufford (Musson). Marnham. 



Mons. decollatum, Jeff. — Wollaton, &c. (Musson). 



Limncea auricula-rid, L. — Occurs in several places, but is nowhere 

 plentiful. 



Var. acuta, Jeff. — Lake at Highfield House (Lowe). 



Limncea stagnalis, L. — More or less plentiful in several localities, 

 especially in the neighbourhood of Nottingham. 



Var. fragilis, L. — Stanton-on-the-Wolds (Lowe). Canal at Work- 

 sop, Lenton canal, Bawtry (Musson). In a ditch at Marnham this 

 variety occurred some years ago in profusion, a few only of the type 

 form being seen. 



Limncea palustr is, Mull. — Plentiful in many places. 



Var. corva, Gmel. — Sawley (Lowe). 



Var. tincta, Jeff. — " This variety has been found sparingly at 

 Beeston and Lenton " (Lowe). 



Var. lacunosa, Zgl. — Nottingham meadows. 



Mons. decollatum, Jeff. — Nottingham meadows (Musson). 



Limncea truncatula, Mull. — Plentiful, and widely distributed, vast 

 numbers may sometimes be seen on the canal banks near Nottingham. 



