145 



Van minutiis, not so large nor so tamid, less polished 

 and dull. This is the general form of Limnaeus trun- 

 catulus found in this neighbourhood. 



It lays from 15 to 20 eggs at a time. 



Specimens hare been sent from Scarborough by Mr. 

 Bean, from Swansea by Mr. Jeffreys, from Penzance by 

 Mr. Millett, and from Bath by Lieut. Hardy. Those 

 from Bath and Penzance are very similar in form to 

 those found in this neighbourhood, whilst those from 

 Scarborough and Swansea are much more tumid, more 

 shining, and having a deeper suture. 



The Nottinghamshire localities are Lenton, Highfield 

 House, Beeston, Thrumpton, Mapperley Plains around 

 the small plashes of water, and at Sawley near the 

 Trent Bridge. In the latter locality it is found in ex- 

 traordinary numbers. 



Other localities that may be mentioned are, Penzance 

 rather rare (Millett), Bristol (Miller), Kent, Dorset- 

 shire, and Wiltshire (Montagu), Essex (Sheppard), 

 Whitlingham, near Norwich, rare (Bridgman), London 

 (Grey), Stone, Buckinghamshire (Reade"), Mill-pond, 

 Ross, Herefordshire (Winstanley), River Trent, between 

 Repton and Swarkstoue Bridge, Derbyshire (Bloxam), 

 Scarborough (Bean), Chaigeley Manor, near Clitheroe 

 (Winstanley), Newcastle (Alder). 



Isle of Man (Forbes), Ireland (Brown), France (Dra- 

 parnaud), Germany (Pfeiffer), Sweden (Nilson), Corsica 

 (Payradeau). 



Found fossil in the mammaliferous crag near London 

 (Morris). 

 LiMNiEus GLABER [The 8-whorled Mud Shell]. Milller. 



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