2rQ CRUSTACEA. 



From several of the Paumotu Islands, as Honden Island, Wilson's ; 

 also the Society, Samoan, and Feejee Islands, being widely spread in 

 the Pacific. 



Length of the carapax of a female, twenty-two and a half lines; 

 greatest breadth, twenty-nine lines; ratio of length to breadth, 

 1 : 1-29. The teeth of the lateral margin do not project so as to add 

 to the breadth of the widest part of the carapax, they are small, and 

 the posterior mere grannies. The two teeth at the outer angle of the 

 orbit are quite prominent in a large specimen, though not acnte. The 

 eyes are red, much like red sealing-wax. 



The figure of this species by Guerin (Iconog. Crust., pi. 3, fig. 1), is 

 very unlike our specimens, especially the representation of the front 

 (1 c), as seen from below; yet we are disposed to refer our specimens 

 here, as they agree exactly with the description by Milne Edwards 

 (Crust., i. 427). The general form, and most of the characters, agree 

 with the K Smithii of M'Leay, as figured by Krauss (Siidaf. Crust,, pi. 

 2, f. 3), and Krauss observes that the male hands in that, species are 

 smooth. But in the Pacific specimen the hands are smooth in both 

 sexes, and even in individuals half an inch long. The carapax is 

 very thick and rounded at the sides, even along the antero-lateral 

 margin, excepting its anterior part. In a front view, we observe that 

 the suture between the orbit and the outer antenna? is very much 

 flexed, which is not the case in the following species. 



Eriphia gonagra. 



Coast of South America, and probably Rio Janeiro. 



Length of carapax of a male, fourteen and a half lines ; greatest 

 breadth, including teeth, twenty-one lines (the teeth adding one line 

 to the breadth) ; ratio of length to breadth, 1 : 1*45 (excluding teeth, 

 1:1-4). Another smaller male, eight lines long, gives for the first ratio, 

 1 : 141. The teeth are stout and pointed, and have a somewhat tuber- 

 culous surface, as in figure 8, Plate 14 ; there is but a single post-orbital 

 spine. The upper margin of the orbit is very finely denticulate. 

 Areolets 3 M and 2M (the latter united to 1 M), are distinct; so also 

 a transverse areolet, posterior to the orbits, corresponding to 2 L + 3L 



