GRAPSOIDEA. 355 



lata, digito mobili infra versus basin dense pubescente. Pedes postici 

 valde compressi, articulo Stio sat lato, \.to btoque supra pubescentibus. 

 Abdomen maris angustum. 



Carapax quadrate, somewhat transverse, considerably narrower be- 

 hind, granulate, lateral region marked with raised lines, antero- 

 lateral margin entire, front perpendicular, above faintly four-lobed, 

 below very slightly arcuate and not excavate at middle. Epistome 

 granulate. Anterior feet of moderate size, granulate, hand short, 

 not dentate above, but having series of minute granules ; moveable 

 finger with a dense hairy spot below near base. Posterior feet 

 much compressed, third joint rather broad, fourth and fifth pube- 

 scent above. Abdomen of male narrow. 



Plate 22, fig. &a, male (mutilated), natural size; b, hand, enlarged 

 three diameters ; c, leg, enlarged three diameters ; c', same, natural 

 size. 



Sandwich Islands. 



Length of carapax of a male, 5i lines; breadth in front, 7*1 lines; 

 breadth behind, 5*9 lines; length of front, 5 lines. The front is 

 quite long. The surface of the carapax is a little uneven, and ante- 

 riorly, as seen with a lens, the granules are sometimes in short series. 

 The third joint of the eight posterior legs is not hairy above. The 

 hairy tuft on the inner surface of the moveable finger near its articu- 

 lation is short. 



Sesarma obtusifrons. 



Carapax quadratics, sat transversus, postice paulo angustior, omnino 

 bene granulatus, lateraliter nee lineolatus, granulis sparsis, paulo areo- 

 latus, margine antero-laterali integro, fronte perpendicidari, supra 

 rotundato, margine frontali arcuato. Epistoma granidatum. Pedes 

 antici mediocres, carpo manuqus supra granidatis, manu extus lawi, 

 digitis nudis. Pedes postici granidati, articido 5to brevissime sparsim 

 hirsuto, 4:to/ere nudo. 



Carapax quadrate, more transverse than usual, a little narrower behind, 



