CANCROIDEA. 175 



Near E. sculptilis in the anterior and posterior feet, antero-lateral 

 margin of the carapax and front. Carapax throughout strong areo- 

 late, areolets for the most part smooth, sometimes slight rugate, 

 outer angle of orbit thin and not tuberculiform nor angulate. 



Plate 8, fig. 9 a, animal, natural size ; b, view of orbit from above, 

 showing summit of outer antennas. 



*o 



Feejees, or Tongatabu. 



Length of carapax, nine lines; greatest breadth, fourteen lines; 

 ratio of length to breadth, 1 : 1-55. The two posterior teeth of the 

 antero-lateral margin are distant, and a nearly straight margin inter- 

 venes between them. The areolets are smooth, with only faint 

 wrinkles, where any, and the surface is a little shining. 



Subgenus XANTHOSES. 



In this group, the first joint of the outer antennaa is rather short, 

 though meeting the front, a frontal process being elongated towards it. 

 The form of the carapax in our species approaches that of Pilumnus 

 and Eriphia. The genus has the same relation to Xantho, as our 

 Pilodius to Chlorodius. The carapax in the species described has the 

 normal number of teeth, except that E is sometimes wanting, and D 

 or the margin of the orbit is often not elevated into a tooth. At 

 tooth S, the margin has an abrupt angle, as in most species of Xantho, 

 and is not rounded as in the species of the genus Paraxanthus. The 

 third joint of the outer maxillipeds is shorter than wide, and is shorter 

 at the outer margin than at the inner, with the terminal margin 

 nearly straight. 



Xanthodes granoso-manus. 



Carapax Icevis, prope margines anticum et antero-lateralem granulosus, 

 antice parce areolatus, areolis 2M 3M postice scepius vix circum- 

 scriptis, iLbLSL coalitis et postwb non circumscripta; f route fere 



