548 CRUSTACEA. 



carpus of second pair somewhat longer than third or fourth ; hand 

 nearly as long as third, fourth, and fifth together, and naked ; second 

 joint longer than third, fourth, fifth, and hand ; fifth pair of legs very 

 slender, compared with the fourth. Tarsus of third and fourth pairs 

 slender. The very great length of the feet of the second pair is a 

 striking peculiarity of the species. 



Alpheus crinitus. 



Rostrum acutum, superficie inter oculos carinatd. Squama antennarum 

 externarum basalts basi ha/rum parce brevior, basi intemarum paulo 

 brevior ; dens intemarum basalis perbrevis. Articulus antennarum 

 intemarum 2dus lmo duplo longior. Pedes antici multo incequi ; 

 manu majore obesd, parce compressd, infra rotundatd, omnino Icevi, 

 partim leviter pubescenti, digitis perbr embus [manu quadruplo bre- 

 vioribus), digito mobili arcuato ; minore oblong a, leviter crinitd, digitis 

 parte manus ante digitos paulo brevioribus. Pedes 2di valde elongati, 

 Stiis sesqui longior es, articulo carpi 2do parce longior e quam lmus, 

 Stio 4to btove oblongo, his inter se longitudine cequis. Pedes Stii 4:tive 

 leviter criniti, articulo 3tio apicem inferiorem dentigero. 



Beak acute, prolonged into a carina between the eyes. Basal scale 

 of outer antennae hardly shorter than base, somewhat shorter than 

 base of inner antennae; second joint of inner antennae twice as long 

 as first ; basal tooth of inner very short. Anterior feet very un- 

 equal; larger hand obese, sparingly compressed, rounded below, 

 wholly smooth, in part light pubescent, fingers very short (one- 

 fourth as long as hand), moveable finger arcuate; smaller hand 

 oblong, light crinite, fingers little shorter than part of hand pre- 

 ceding fingers. Feet of second pair very long, one and a half times 

 as long as third pair, second joint of carpus a little longer than first, 

 third, fourth, fifth each oblong, nearly equal; feet of third and 

 fourth pairs light crinite, third joint having a tooth at lower apex. 



Plate 34, fig. 8 a, front much enlarged; b, part of outer maxillipeds; 

 c, large hand (left) ; d, smaller hand; e, part of foot of second pair;' 

 /, leg of third or fourth pair. 



Balabac Straits. 



