I. '21. 15 



1. Rostrum rounded; carpus of right cheliped 



about as long as palm ; no keel on propodite 

 of left cheliped ; setae on right chela usually 

 long and plumose forming a matted fur 



E. cuanensis, 



2. Rostrum produced to a sharp point ; carpus of 



right cheliped nearly as long as palm and 

 fingers together ; a strong keel on propodite 

 of left cheliped ; setae on right chela arranged 

 in groups springing from bases of tubercles 



E. puhescens, 



II. No row of spines on lower edge of dactyl of walking legs. 



A. External process of second joint of antennal pe- 

 duncle reaching about to middle of fourth joint ; 

 no toothed keel on propodite of left cheliped 



E. Prideauxii. 



B. External process of second joint of antennal pe- 



duncle reaching just beyond the base of fifth 

 joint ; a strong keel armed with teeth on 

 upper surface of propodite of left cheliped 



E. variabilis. 



Eupagurus Bernhardus (Linn.) 



Plate. I, figs. 1-11. 



Pagurus Bernhardus, Bell, 1853. 



Eupagurus Bernhardus, Bouvier, 1896 (b). 



Eupagurus Bernhardus, A. Milne-Edwards and Bouvier,. 



1900. 

 Pagurus Bernhardus, Benedict, 1901. 

 Pagurus acadianus, Benedict, 1901. 

 Eupagurus Bernhardus, Hansen, 1908. 

 Eupagurus Bernhardus, Stephensen, 1910. 



The central part of the front of the carapace is produced 

 into a distinct rostrum. On each side of this and just beyond 

 the eyestalk there is a slight projection which is not quite so 

 long as the rostrum itself. The carapace is roughly pear- 

 shaped, broadening out very much behind the cervical groove, 

 which is very distinct and deeply excavated. The anterior 

 part is strongly calcified, but on the cardiac and branchial 

 areas the surface is almost membranous. The central part 

 of the posterior margin is deeply concave. The frontal margin 

 bears a sparse fringe of short setae. 



The abdomen is large and of the usual twisted form. The 

 telson is small, roughly quadrate and slightly concave pos- 

 teriorly. 



The eyestalks are of medium thickness and become slightly 

 dilated towards the distal end. The corneal surface is strongly 



