C A R I D E A. 



545 



bracJiio apicem internum inermi; manu minore angusio-oblonga, paulo 

 pubescente, digitis intus dense hirsutis, apicibus supernd non tectis. 

 Pedes 2di 3tUs parce longiores, carpi articulo 2do multo breviore quam 

 lmus, vix longiore quam 5tus. 



Beak short, acute, surface between the eyes slightly carinate. Basal 

 scale of outer antennae shorter than base of same ; second joint of 

 inner antennae twice as long as first joint. Anterior feet very 

 unequal ; larger hand as in A. Edwardsii, the sinus of lower margin 

 deep triangular, arm unarmed at inner apex and elsewhere; smaller 

 hand narrow oblong, a little pubescent, fingers densely hirsute 

 within, upper surface of extremity not covered. Second pair of feet 

 but little longer than third, second joint of carpus much shorter 

 than first, and little longer than fifth. 



Plate 34, fig. 5 a. front and base of antennae ; b, side view of front ; 

 c, part of outer maxilliped ; d, e, hands j /, part of foot of second pair; 

 g, part of foot of third or fourth pair. 



Sandwich Islands. 



Length of body, one and three-fourths inches. This species differs 

 from the A. strenuus in having the notch on the lower margin of larger 

 hand abrupt triangular, the tips of the fingers of the smaller hand not 

 at all concealed by hairs, the arm without a tooth at inner apex, the 

 base of outer antennae longer than scale, second pair of feet much shorter 

 proportionally, with the second joint of carpus much shorter than first. 

 The general form of the larger hand, the uneven surface, and the shape 

 of the fingers, are much as in the strenuus. The third and fourth 

 joints of the carpus of the second pair of feet are together hardly as 

 long as the second, and about equal to the fifth joint; the first equals 

 the second, third, and fourth together; the hand is as long as the 

 fourth and fifth joints. 



b. Orbitte margo spinula armatus. 



Alpheus euchirus. 



Itostrum paulo elongatum, superficie inter ocidos carinatd. Squama 



137 



