C A R I D E A. 



557 



not half as long as hand. Second pair of feet but little longer than 

 third, first joint of carpus slightly longer than second, and as long 

 as hand. Third pair having lower apex of third joint not acute, 

 tarsus broad and short. 



Plate 35, fig. 8 a, front, enlarged three diameters; b, profile of front, 

 c, part of outer maxillipeds ; d, larger hand, two diameters ; e, smaller 

 hand, two and a half diameters ; /, part of second pair of feet ; g, part 

 of third pair, enlarged two diameters ; h, form of tarsus. 



Sandwich Islands ; also Feejees or Friendly Islands. 



Length of body, one and one-fourth inches. Basal spine or tooth 

 of inner antennae longer than first joint; second joint nearly one and 

 a half times the first. Tarsus not uncinate. Carpus of second pair of 

 feet with all the joints rather short, third and fourth joints very short, 

 as long together as second or fifth. 



Alpheus laevis, Dr. J. W. Eandall, Jour. Acad. Nat. Sci. Philad., viii. p. 141. 



Alpheus MALLEATOR. 



Rostrum perbreve, triangulatum, inter oculorum bases ortum. Spina 

 orbitalis brevis. Hquama antennarum externarum basalis basi brevior; 

 spina basalis externarum mediocris, internarum brevissima; articidus 

 2dus internarum lmo sesqui longior. Pedes antici inasqui; manus 

 majoris superficiebus supernd et interna partim minute^ tuberculatis, mar- 

 gine superiore sulcato, juxta articulationem digiti 2-3-inciso, digitis 

 perbrevibus, mobili malleiformi, obtuso. Pedes 2di Stiis parce longi~ 

 ores, articulo carpi lmo duplo longiore quam 2dus. Pedes 3tii cras- 

 siusculi, articulo Mo apicem inferiorem obtuso. 



Beak short triangular, arising from between bases of eyes. Orbital 

 spine short. Basal scale of outer antennas shorter than base ; basal 

 spine of outer antennae of moderate length, of inner antennae very 

 short; second joint of inner pair one and a half times as long as 

 first. Anterior feet unequal; upper and inner surface of larger 

 hand partly minute tuberculate, upper margin sulcate and next to 

 the articulation 2-3 incised, lower rounded, fingers very short, the 



140 



