PORCELLANOPAGURUS— BORRADAILE. 



115 



thus scanty, the segmentation of the abdomen is distinctly, though not strongly, 

 marked by shallow grooves on the dorsal side, separating strips of slightly stouter 

 cuticle on which stand the tergal pieces already described. The hinder edge of the 

 fifth segment is sharply marked, and stands out as a half ring, under which the stout 

 tergite of the sixth segment is telescoped for a short distance. This may also be seen 



Fig. 4. — Eupagurus hernhardus : dorsal view of a female 

 specimen, nat. size. 2, 5, Second and fifth terga. 



Fig. 5. — Porcellanopagunis : dorsal view of the 

 specimen shown in Fig. 1, after removal 

 of most of the eggs, x 4. The end of the 

 fifth leg is also shown enlarged. The 

 limbs of the second, third, and fourth 

 abdominal segments are exposed by the 

 removal of the eggs which they carried ; 

 a few of the eggs remain attached to the 

 long hairs of the appendages. The tergal 

 vestiges upon which these limbs stand are 

 shown. The tergum of the first abdominal 

 segment may be seen in front of the fore- 

 most egg-bearing limb. The fifth segment 

 has no hard tergite. That of the sixth 

 segment, composed of four large and two 

 small pieces, is seen behind, between the 

 uropods. c, Cervical groove ; r, rostrum ; 

 1-4, side-lobes of the cephalothorax. 



in Eupagurus. In the male, only the slightest traces of segmentation are recognisable. 

 The sixth tergite in both sexes is represented by two stout plates, one behind the 

 other, each divided by a deep median groove into two, with a pair of small nodules at 

 the sides against the junction of the main plates. In Eupagurus each pair of plates is 

 represented by a single structure. The tergite of the telson is softer than that of the 



