120 ' Linnean Society. [Feb. 18, 



U. ovalis. Found in the lake at Highfield House and in the river 

 Trent at Beeston. 



U. Deshayesii (if a var.). Not common in the river Trent near 

 Beeston. 



Dreissena polymorpha. Very common and large in the lake at 

 Highfield House, common in the canal at Lenton (where it is small), 

 the river Soar at Thrumpton, and a pond at Wollaton, and in few 

 numbers in the river Trent near Beeston. 



Land Shells. 



Helix aspersa. Very common at Beeston and around Nottingham. 



H. hortensis. Rare at Bulwell. 



H. 7iemoralis. Very abundant in most hedges. 



H. hyhrida (if a var.). Rare at Highfield House. 



H. arbustorum. Rare at Thrumpton, Sawley, and Highfield 

 House. 



H. pulchella. Tolerably abundant at Highfield House, rare at 

 Beeston and Oxton. 



H. fulva. Not uncommon at the foot of a hill at Thrumpton, rare 

 at Highfield House, Oxton, and Stanton-on-the-Wolds. 



H. hispida. Common at Nottingham Castle, Beeston, Bulwell, 

 Sawley, Oxton, Highfield House, Thrumpton, Stanton-on-the- 

 Wolds, &c. 



H. concinna. Tolerably abundant at Highfield House, and found 

 at Stanton-on-the-Wolds. 



H. depilata. Found in small numbers at Stanton-on-the-Wolds. 



H. sericea. Rare at Bulwell, Oxton, and Stanton-on-the-Wolds. 



H. virgata. Rare at Stanton-on-the-Wolds and at Highfield 

 House. 



H. ericetorum. Abundant at Stanton-on-the-Wolds. 



H. rotundata. Very common at Highfield House and Nottingham 

 Castle, and found at Bulwell. 

 ' H. alliaria. Not abundant at Sawley and Thrumpton. 



H. cellaria. Abundant at Nottingham Castle, Sawley, and High- 

 field House. 



H. aculeata. Rather rare under decayed leaves at Highfield House 

 and Stanton-on-the-Wolds. 



H. caper ata. Very abundant at Stanton-on-the-Wolds in one 

 field, but not found elsewhere. 



H. crystallina. Not abundant at Highfield House, Bulwell, and 

 Oxton. 



H, granulata. Rare on Bulwell Forest. 



