GRAPSOIDEA. 377 



Carapax longitudinally convex, lateral margin having a border ante- 

 riorly and a minute point near the postorbital angle, praemedian 

 areolet near margin of front quite abrupt, pterygostomian region 

 pilose. Process between orbit and outer antennae triangular, tri- 

 hedral. First joint of outer antennas rectangular, truncate across 

 above. Anterior feet of male short but stout, subequal, hand punc- 

 tate, shorter than breadth of carapax, along upper margin to finger 

 much shorter than high, fingers much gaping. Posterior feet rough 

 hairy. 



Plate 24, fig. 2 a, male, natural size ; b, male abdomen and sternum ; 

 c, base of outer antennas and the adjoining process between it and 

 orbit ; d, tarsus of fourth pair, enlarged. 



Feejee Islands, Pacific. 



Length of carapax of male, twenty-two and a half lines ; breadth, 

 twenty-eight lines ; length of front, seven and a half lines ; breadth of 

 buccal area anteriorly, five and two-thirds lines; posteriorly, eight and 

 one-fourth lines; length of upper margin of hand to finger, eight lines; 

 height, thirteen and a half lines ; whole length of hand, twenty-three 

 lines. The angle on the lateral margin is continued through nearly 

 half the length of the sides. The third joint of the eight posterior 

 legs forms an edge above, which edge is hairy as well as the lower 

 margin. Carpus entire and smooth, nearly rectangular and subacute 

 on inner side. The line between the medial and posterior regions of 

 the carapax, is situated much posterior to the middle of the carapax. 



C. Mrtipes, Dana, Proc. Acad. Nat. Sci. Philad., v. 253. 



Cakdisoma carnifex (Herbst), Latr. 

 Madeira? 



"We refer here a small male specimen, evidently young, which has 

 the marginate sides of the carnifex and the tooth just behind the post- 

 orbital tooth. It is four and three-fourths lines long, and five and a 



95 



