36 



SOUTHERN SPECIES. 



Fonitoides interniis Say. Ohio valley. 



Conuhis sterkii Dall. Summit and Tuscarawas Coun- 

 ties ; probably all Eastern Ohio. 



Polygyra ( Mesodon ) mitchellia7ia Lea. Tuscarawas 

 Cou^t5^ and probably distributed over Southern Ohio. 



Polygyra ( Trisdopris ) appressa Say. Ohio valley. 



Polygyra (Stenotrema) stenotrema Fer. Ohio valley 

 (Southern O.) 



Pupa proccra Gould. Ohio valley (Cincinnati, etc.) In 

 the upper Mississippi valley it has been found up to Iowa and 

 Minnesota. 



WESTERN SPECIES. 



Hyalina Icrviiisciila Sterki. Western Ohio (Troj-.) 

 Pupa Iwbgingeri Sterki. Reported from Western Ohio. 

 ( The species is found from New Mexico and Kansas, to 

 Manitoba and Illinois.) 



Of some other species we know that they are found in 

 .some single places ; but their distribution as a whole, in the 

 State, is still a " terra incognita." Only a few of them may 

 be named : 



FonHoidcs nitidiis Muller. 

 Fonitoides limatuliis Ward (e. g. Columbus,) 

 Hyalina inornata Say. which has been found as far 

 north as Ottawa, Ontario. 



Pallifera dor salts Binn. (e. g. Tuscarawas Co.) 

 ]'allonia costata Mull (Columbus.) 

 I'allonia excentrica Sterki (Tuscarawas Co.) 

 Strobilops virgo Pils. ( Tu.scarawas Co., rare.) 

 To the.se may be added an immigrant from Europe, 

 Limax agrestis Linn, which is going to be a citizen of the 

 whole globe, noxious and unwelcome everywhere. 



Ad 3. A number of species have been examined for 

 their anatomy, especially fonitidce, in order to state their 

 systematic position. It has been found that arbor eiis ranges 

 under fonitoides, with nitidus, ligerus, .suppressus, etc., 



