/ a ARMADILLO. 



Although the genus Armadillo, as I here have founded 

 it, is essentially different from the genus Spherillo, I shall, 

 however, treat it in this place, because I have had oppor- 

 tunity to examine so large a number of species belonging 

 to the genus Armadillo and because the species of this ge- 

 nus have so great a resemblance to the species of the genus 

 <Sp/jen7to, that it always will be useful and often necessary 

 to compare the species of the one genus with species of 

 the other. All the numerous species here enumerated of 

 Spherillo and Armadillo have also by all other authors ])een 

 collected within the Armadillidce. 



The common characters for the genus Armadillo and 

 for the group or subfamily ^Oniscin(E«, given below must 

 be fully explained in an other place in connection with the 

 other genera belonging to this subfamily. 



Mandibularum lacinia mobilis appendice prima brevi, 

 apice dentata. 



Maxillce prioris paris endopoditum penicillis ambobus 

 longis, gracilibus. 



Oculi plerumque nonnihil intra marginem lateralem 

 capitis positi. 



