Number 58 June 22, 1918 



OCCASIONAL PAPERS OF THE MUSEUM OF 

 ZOOLOGY 



UNIVERSITY OF MICHIGAN 



Ann xA-Rbor, Miciiic.an. Published bv the University. 



FOREIGN LAND SNAILS IN MICHIGAN 

 By Bryant Walker 



During the last few years several species of foreign snails 

 have been found in the state, and it seems desirable to have 

 them recorded, although as Dr. Pilsbr}- has well said: "Until 

 naturalized out of doors, these can hardly be regarded as be- 

 longing to our fauna, any more than the animals of zoological 

 gardens." 



I. Ar'ion ater (L.). — In September, 1912, Mr. I. T. Cowles, 

 then living at No. 148 Seyburn Ave., Detroit, reported to me 

 that he had seen a large slug in his garden. Thinking that it 

 might possibly be Limax maximus L., which has not yet been 

 reported from the state, I asked him to bring it to me, in case 

 he saw it again. This he did a few days later, and, to my sur- 

 prise, it proved to be a specimen of this species. This seems 

 to be the only authentic record of the species for North Amer- 

 ica. The only reference of its occurrence in this country that 

 I have been able to find is one by Grateloup ( Distr. Geog. de 



