122 CRUSTACEA. 



legs there is a small setigerous prominence. In the Upolu specimen, 

 this character is apparent, but not very distinct. The anterior medial 

 tubercles are furnished with a tuft of short, curled seise. 



It seemed probable at first that the Samoan specimen might be the 

 young of the subserratus. But the characters given appear to separate 

 them. 



MEN^ETHIUS SUBSERRATUS, Adams and White. 



Plate 4, fig. 7 a, carapax of male, enlarged two diameters ; 6, under 

 view of same, enlarged four diameters; c, female, enlarged two diame- 

 ters ; d, male abdomen, enlarged two diameters ; e, female do. ; /, hand 

 of female ; g, moveable finger of male. 



Feejee and Samoan Islands. 



Carapax rather strongly tuberculate, stout, greatest breadth hardly 

 great as length excluding beak ; beak at tip emarginate ; posterior 

 lateral tooth subacute, the two others bilobate ; medial region with 

 three small tubercles posteriorly, arranged triangularly ; post-medial 

 region with a small tubercle ; intestinal uni-tuberculate : posterior 

 margin of carapax not tuberculate or bearing a prominence. Abdomen 

 of male very narrow, towards base suborbicular. Fingers of hand a little 

 apart at base ; the lower of female, denticulate along its whole inner 

 margin, the upper near base bare in female, but having a broad tooth 

 in male. 



Length of male, eight and one half lines ; greatest breadth, six lines. 

 Length of female, seven lines ; greatest breadth, five lines. Male a little 

 more slender than the female, but otherwise similar, and not differing 

 in the manner shown in the figures of Adams and White. The large 

 tooth of the finger in the male was not observed in the female. Only 

 four segments were distinguished in the female abdomen, as seen in 

 figure 7 e. 



In some specimens, the two anterior of the lateral teeth are very 

 nearly simple, or scarcely bilobate. The beak, when broken at tip, 

 as often happens in species of this genus, fails of course of showing the 

 emargination. The outer antennas in one of the specimens were 



