C A R I D E A. 549 



Length of body, ten lines. Large hand largest in its basal half, 

 and diminishing a little towards apex, at lower margin as well as 

 elsewhere broadly rounded. The apex above the articulation of the 

 moveable finger nearly in same line with the upper margin of the 

 finger; carpus transverse; arm with lower apex very short acute. 

 Carpus of second pair of feet has second joint as long nearly as third, 

 fourth and fifth together ; the hand is rather shorter than the fourth 

 and fifth. The fifth joint of the third or fourth pair of legs has about 

 four sets of spinules on inner margin. 



Alpheus mitis. 



Rostrum acutum, superficie inter oculos carinatd. /Squama antennarum 

 externarum basalis basi harum internarumve parce longior. Artkulus 

 antennarum internarum 2dus Imo paulo longior, densque hasalis 

 articido lmo fere longior. Pedes antici incequi ; manu major e Icevi, 

 paulo compressd, marginibus rotundatd, digitis regularibus, manu fere 

 triplo brevioribus; manu minore simili, angustiore. Pedes 2di Mis 

 multo longiores, articulo carpi 2do lmum longitudine cequante, Mo 

 4:tove oblongo, parce breviore quam 6tus, manu perbrevi. Pedes Mi 

 4:tiquefere nudi, articulo Mo apicem internum non acuto. 



Beak acute, surface between the eyes carinate. Basal scale of outer 

 antennae rather longer than base of outer or inner antennas. Second 

 joint of inner antennae a little longer than first, basal tooth hardly 

 longer than first joint. Anterior feet unequal ; larger hand smooth, 

 a little compressed, margins rounded, fingers regular, one-third as 

 long as hand; smaller hand like the larger, but narrower in propor- 

 tion. Feet of second pair much longer than third; first and second 

 joints of carpus equal, third and fourth oblong, sparingly shorter than 

 fifth, hand very short. Feet of third and fourth pairs nearly naked, 

 third joint not acute at inner apex. 



Plate 35, fig. 1 a, front, enlarged eight diameters ; b, extremity of 

 outer maxillipeds ; c, larger hand ; d, smaller; e, part of leg of second 

 pair ; /, part of leg of third pair. 



Balabac Straits, East Indies. 



138 



