CAMMARUS CAMPYLOPS. 



377 



tween G. marinus and G. locusta, and as such we consider 

 it to be one which we have observed also on the Devon- 

 shire coast. We can perceive no distinction, except in 

 the form of the eyes, between the description of this 

 species and that of G. locusta of Liljeborg, and we have 

 therefore considered them to be identical. 



The following vignette exhibits a Gammarus in the 

 act of shedding its skin, a full account of which process 

 will be given in the Introduction. 



