Vol. XLVI. LONDON, SEPTEMBER, 1914 No. 9 



NOTES ON MYRIAPODS FROM DOUGLAS LAKE, 



MICHIGAN. 



BY RALPH V. CHAMBERLIN, CAMBRIDGE, MASS. 



The Chilopods and Diplopods here listed and described were all 

 collected near the University of Michigan Biological Station at 

 Lake Douglas, Mich., during July and August, 1913, by Mr. G. 

 F. Sutherland, by whom they were sent to the writer for identifica- 

 tion. All the specimens were taken from decaying logs. 



The new Nampabius is represented by numerous individuals 

 of both sexes. It is the largest known species of the genus and is 

 geographically the most remote from what seems to be the centre 

 for the group. Its habits would seem to correspond with those 

 which I have noted for various other species in the genus, these 

 having similarly been taken in greatest abundance under the bark 

 of decaying logs. 



Judging from the number of individuals in the collection, the 

 new Parajulus is much the most common species of the genus 

 occurring in the decaying logs at Douglas Lake. It is a strongly 

 marked species, easily distinguishable from others known to occur 

 in the region. 



Class CHILOPODA. 



1. Geophilus rubens Say. 



This widespread species, at once distinguishable from others 

 of the region by the characteristic geminate black stripe along 

 dorsum, is represented in the collection by numerous specimens. 



2. Linotaenia chionophila (Wood). 



Also a very common and widespread species in the Northern 

 United States and in Canada.- In the collection are three adults 

 and three very young specimens. 



3. Bothiopolys multidentatus (Newport). 



A species common throughout the Middle Western and the 

 Eastern States. Many specimens. 



