Baker—MoUuscan Fauna of Tomahawk Lake, Wisconsin. 229/ 
were discovered, besides a recently described variety of Plan- 
orbis not before recorded from the state. Comparing the catalog 
with Chadwick’s published list, it is found that a number of 
species have not been previously recorded from the state. These 
additions (13) to the Wisconsin fauna are as follows: 
Strobilops virgo. 
Lymncea stagnalis lilliance. 
Lymncea lanceata. 
Lymncea emarginaia ivisconsinensis 1 . 
Planorbis binneyi 2 . 
Planorbis bicarinatus unicarinatus. 
Planorbis campanulatus rudentis. 
Anodonta marginata. 
Musculium securis. 
Musculium rosaceum. 
Pisidium abditum. 
Pisidium roperi. 
Pisidium subrotundum. 
i Bull. Wis. Nat. Hist. Soc., IV, pp. 67-99. 
1 The species reported on p. 80 of Chadwick’s list as decollata is, 
emarginata angulata Sowb. 
2 No. 51a of Chadwick’s list is this species. 
