THE NAUTILUS. 15 



for many specimens from the western part of the state ; to Dr. M. 

 L. Leach, of Wexford, for a great deal of valuable material from 

 the central and northern portions; and to Mr. Jerome Trombly, of 

 Petersburg, for the local species of Monroe County. 



Dr. V. Sterki has very kindly examined all the Pupidoe in my 

 possession, so that there can be no question as to the species of this 

 fiimiiy so far as they are cited from my own collection. 



It is greatly to be regretted that so little is known of the shells 

 of the upper peninsula. It is practically a terra incognita to the 

 conchologist. With the exception of Gould's citations in Agassiz's 

 "Lake Superior" and S. I. Smith's paper above referred to, I have 

 not been able to find any published information in regard to the 

 fauna of that very important portion of the State. Some very 

 inconsiderable collections from a few points along the St. Mary's 

 river comprise all my personal knowledge in this particular. 



As no localities are given as a rule in the earlier catalogues, it is 

 impossible to say what information, if any, their compilers had on 

 this subject. 



In view of this condition of affairs it might have been better to 

 have limited the title of this paper to the lower peninsula. As it is, 

 however, it will be understood that unless otherwise specified, all 

 remarks as to distribution are confined in that j^ortion of the state 

 south of the Straits of Mackinac. 



Selenites concavus Say. Throughout the lower peninsula and 

 probably further north, as it occurs at Lime Island in the St. Mary's 

 river. 



Vitrina limjnda Gld. Traverse City and Lime Island in the St. 

 Mary's river are the only localities yet recorded for this species. 



Zonites j'uliginosus Griff. Southern part of the State. 



Z. ligerus Say. Not uncommon in the -southern part of the 

 State. 



[Z. inornatus Say. Cited by Sagar and Miles, but does not appear 

 to have been found by more recent collectors.] 



Z. cellarius Mull. A few specimens were found several years ago 

 in a green-house in Detroit. 



Z. nitidus Mull. Abundant everywhere. 



Z. arboreus Say. Abundant everywhere. 



Z. radiatulus Alder. Common but not as abundant as (.rboreus. 



Z. indeniatus Say. Common everywhere. 



