THE MOUNT DESERT REGION 



31 



ceros (Zimmer), E. argentata (Caiman), and E. granulatus 

 (Zimmer), all of which are southern in distribution. All 

 these species agree in possessing anterolateral processes on 

 the carapace, E. ins ignis (G. 0. Sars) with inferolateral 

 processes should perhaps be included. 



In addition to the specimen in the collection of the Biologi- 

 cal Survey of the Mount Desert Region, I have examined two 

 from Eastport, Maine, in the collection of the Boston Society 

 of Natural Historv. 



Fig. 15 Ekdiastylis coriuiifer 



