GRAPSOIDEA. 



325 



rior to the upper orbital margin adjoining, but none of the joints of 

 the legs are spinulous. The larger hand is more oblong than in palli- 

 dula. The tarsus is also much more slender than in pallidida, and 

 not at all enlarged towards its extremity. The legs are but little 

 pubescent, and not hairy, like those of arenaria. 



OCYPODA L^EVIS. 



Garapax omnino subtiliter gramdalus, angulis anticis antice productis 

 et acutis. Pedes fere nudi; antici inermes, manu perlatd et brevi, sub- 

 tiliter gramdatd, parte ante digitos transversa, marginibus non den- 

 tatis, inferiore subtiliter denticulate, digito inferiore ad basin longi- 

 tudine ejus parce angustiore; 8 postici Iceves, articulo 5to breviter 

 pubescentes, parium 2di 3tiique apice later eque anterior e breviter 

 denseque pubescenti, tarso versus apicem iion latiore, basi pubescente. 

 Abdominis segmentum maris ultimum wquilateraliter triangulatum. 



Oarapax throughout fine granulous, anterior angles produced forward 

 and acute. Feet nearly naked ; anterior pair unarmed, hand very 

 broad and short, finely granulate, the part before fingers transverse, 

 margins unarmed, lower very minutely denticulate, lower finger at 

 base nearly as broad as its length, eight posterior legs smooth, fifth 

 joint short pubescent, in second and third pairs a dense short 

 pubescence towards apex of this joint and on its anterior surface ; 

 tarsus not broader towards apex, pubescent at base. Last abdo- 

 minal segment equilaterally triangular. 



Sandwich Islands. 



Plate 20, fig. 2, larger hand of male, showing its form. 



Length of carapax, seven lines ; breadth, anteriorly, eight and one- 

 half lines; ratio, 1 : T21. The larger hand, as well as lower finger, 

 is shorter for its breadth than the same in the pallidula; the second 

 and third pairs of legs have the fifth joint densely (instead of sparsely) 

 pubescent, the pubescence in both species short ; the peduncle of the 

 eye at the tip of the cornea is twice as broad as it is a short distance 

 below, being in this part suborbicular in outline. It is readily distin- 



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