9lg CRUSTACEA. 



Plate 12, fig. 6 a, male, enlarged three diameters; b 7 extremity of 

 abdomen, enlarged; c, front view of front, showing process p, fc..j d, 

 outline of back. 



Sooloo Sea, or Balabac Passage. 



Length of carapax, three and two-thirds lines; greatest breadth, five 

 and one-half lines; ratio of length to breadth, 1 : 1*5. The hairs of 

 the surface and legs are much finer than in the pilwnrwides, and have 

 a brown colour. The anterior legs are very similar to those of that 

 species; but the areolation of the carapax is much less distinct, and 

 the antero-lateral teeth are simple and slender. 



PlLODIUS NITIDUS. 



Carapax bene nitidus, anticd optime areolatus, areolis plerumque plants, 

 1R, 2R sulco discretis, Hi 2-3 tubercidis aid ice ornatd ; margine 

 antero-laterali bene b-dentato, dentibus duobus posticis acutis. Pedes 

 antici spinis valde armati, dig do mobili prope basin inter dum spinvr 

 loso, carpo iutus duobus spinis tenuibus acutis armato. Pedes 8 postici 

 pubescentes, articido tertio supra armato. 



Carapax shining, anteriorly very distinctly areolate, areolets very neat, 

 and mostly with a flat surface, 1 R, 2 R separated by a furrow, 1 R 

 having two or three tubercles on its anterior margin ; antero-late- 

 ral margin five-toothed, the two posterior acute. Anterior feet 

 strongly armed with spines, moveable finger sometimes spinulous 

 near base, carpus having two slender spines on inner angle. Poste- 

 rior eight feet pubescent, third joint armed along upper margin. 



Plate 12, fig. 7a, male, enlarged three diameters; b, right arm, en- 

 larged four diameters ; c, extremity of abdomen ; d, leg of third or 

 fourth pair, enlarged three diameters ; e, front view of front. 



Reef of Tutuila, Samoan Group. 



Length of carapax, three and one-third lines ; greatest breadth, five 

 lines; ratio of length to breadth, 1 : 1-5. The polished surface of this 



