THE HAMILTON ASSOCIATION. II5 



FAMILY SUCCINEID/E. 

 GENUS SUCCINEA, DRAP. 



SucciNEA AVARA, Say. 



A few taken near Dundas Marsh, and near stream through 

 open woods. 



SucciNEA OBLiQUA, Say. 



Common, moist spots on banks and in woods. 



SucciNEA OVALIS, Gould. 



Common along edge of Dundas Marsh. 



SUB-ORDER LIMNOPHILA. 



FAMILY AURICULID^. 

 GENUS CARYCHIUM, MULLER. 



Carychium exiguum. Say. 



Common in decaying leaves, moss, and under sticks, etc., in 

 swampy localities. 



FAMILY LIMN^rn^. 



GENUS LIMN/EA, LAM. 



SUB-GENUS LYMNOPHYSA, FITZ. 



LiMN^A STAGNALis, Linn. 



Common ; Dundas Marsh. 



LiMN.EA PALUSTRIS, MUll. 



Common in streams and creeks around Bay and Marsh ; very 

 variable in size. 



LiMNiEA HUMiLis, Say. 



On rocks in streams ; Chedoke Gorge and Dundas Ravine. 



LiMN^A DESIDIOSA, Say. 



Not common ; found in some streams around the city. 



LlMN^A CAPERATA, Say. 



Common in some streams through open woods. 



LlMN^A GRACILIS. 



Nearly 150 specimens taken Nov. 24 on Carroll's Point, thrown 

 up in driftweed after a storm, not easily distinguished from 

 the weed. 



