C A R I D E A. 



553 



long as the base of the antennae. The outer maxillipeds are nearly 

 naked, and terminate in a cluster of spinules or short setaa. The 

 smaller hand is quite small and rather short ; fingers about half whole 

 length of hand. The second joint of carpus of second pair of feet is 

 slightly longer than the third or fourth, either of which is about as 

 broad as long ; the large hand is as long very nearly as the third, 

 fourth and fifth joints together, and is but little shorter than the first; 

 it bears some dense tufts of short hairs, especially on the under margin 



Alpheus neptunus. 



Frons elongate trispinosus, rostro spinisque orbitcdibus prcelongis, cequis. 

 Squama antennarum externarum basalis bad brevior et spina externa 

 elongata; spina internarum basalis longa, articulo 2do breviore quam 

 lmus. Pedes antici multo incequi, manu majore Icevi, paido compressa, 

 marginibus rotundatd, digitis brevibus, manu triplo brevioribus, digito 

 mobili supra arcuato; rnanu minore angustd. Pedes 2di Mis lon- 

 giores, articulo carpi lmo quadruplo longiore quam 2dus, 2do 3tio 

 Atoque inter se fere cequis, non oblongis. Articidus pedum sequeniium 

 Stius apice infer iore inermis. 



Front with three long spines, the beak and orbital spines being quite 

 long and equal. Basal scale of outer antennas shorter than base, 

 and outer spine elongate ; basal spine of inner antennas long, second 

 joint shorter than first. Anterior feet very unequal ; larger hand 

 smooth, slightly compressed, margins rounded, entire, fingers short, 

 one-third as long as hand, moveable one arcuate above; smaller 

 hand narrow. Feet of second pair longer than third, first joint of 

 carpus about four times as long as second, the second, third, and 

 fourth equal, not oblong. Third joint of following feet unarmed at 

 lower apex. 



Plate 35, fig. 5a, front, enlarged six diameters; b, larger hand, 

 enlarged six diameters ; c, moveable finger, thrown back ; d, smaller 

 hand, enlarged six diameters ; e, part of leg of second pair ; /, ibid, of 

 third pair. 



Sooloo Sea at six and a half and nine fathoms; also, Feejee Islands. 



139 



