56. GASTRODONTA DEMISSA’ (Binn.) 
Grand Rapids collected by DeCamp and identified by 
Sterki. Also reported by Streng. The occurrence of this 
species in Michigan far to the north of its usual habitat is 
quite interesting. It is not quoted by Call in his catalogue of 
Indiana mollusca. The presence of l?¢rea wheatley? in this 
state is a similar. instance of eccentric distribution. ‘‘ Very 
rare in Kent county,” Streng. 
57. GASTRODONTA LIGERA (Say). 
The returns indicate a general distribution across the 
southern part of the state. Specimens with a wider umbili- 
cus approaching var. sfonez occur occasionally. ‘* Not abund- 
ant in Kent county,” Streng. 
58. GASTRODONTA SUPPRESSA (Say). 
Apparently rare and local. Kent and Genessee counties 
are the only localities reported. ‘‘Rare in Kent county,” 
Streng. 
59. GASTRODONTA MULTIDENTATA (Binn.) 
Rare and local. It has been found in Emmet, Grand 
Traverse, Iosco, Saginaw and Kalamazoo counties, which 
indicates a general distribution. 
60. AGRIOLIMAX AGRESTIS (L.) 
This is the latest addition to our fauna. It was found by 
Prof. R. H. Pettit on the grounds of the Agricultural College 
near Lansing, under an old log on the bank of the Cedar 
river. As the college green-houses are within a few hundred 
yards of the place where the slugs were found, it seems prob- 
able that they were imported with some of the green-house 
plants. 
61. AGRIOLIMAX CAMPESTRIS (Binn.) 
Generally distributed. 
62. PHILOMYCUS CAROLINENSIS (Bosc.) 
Generally distributed in the lower peninsula. 
63. PyRAMIDULA ALTERNATA (Say). 
Common everywhere. 
63a. PyRAMIDULA ALTERNATA ALBA (Tryon). 
Western part of the state from Lime Island, St. Mary’s 
river, to Grand Rapids, associated with the typical form and 
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