C A RIDE A. 587 



it. In our single specimen, the first or outer tooth of the lower 

 margin of the beak is directly beneath the first of the upper margin. 

 The hand of the second pair is full three times as long as that of the 

 first pair. Length of body, one and one-fourth inches. 



CONCINNUS. 



Rostrum gracillimum, squama antennali vix longius, basi antennarum 

 internarum multo longius, ensiforme, fere rectum, apice bifid-urn vel 

 trifidum dorsoque non altius, infra remold minut&que 5-dentatum, 

 supra 56-dentatum, dente \mo vel externo a extremitate rostri remoto, 

 penultimo inter oculos. Maxillipedes externi apicem basis antennarum 

 externarum paulo superantes, hirsuti. Pedes Iwn apicem squamae 

 antennalis fere attingentes. Pedes duo postici prcelongi, tenuissimi, 

 articulo 4to apicem maxillipedis externi fere attingente. 



Beak very slender, hardly longer than basal scale of outer antennae, 

 much longer than base of inner antennae, ensiform, nearly straight, 

 its apex bifid or trifid, and not raised above line of back, re- 

 motely and minutely five-toothed below, 5-6-toothed above, the first 

 tooth remote from extremity, and the penultimate situated be- 

 tween the eyes. Outer maxillipeds reaching a little beyond apex 

 of base of outer antennas, hirsute. First pair of feet extending 

 forward nearly to apex of antennary scale. Posterior feet very 

 long, and slender, apex of fourth joint reaching nearly to apex of 

 outer maxillipeds. 



Plate 38, fig. 10 a, cephalothorax, enlarged two diameters; b, beak, 

 enlarged, from a larger specimen. 



Feejee Islands. 



Length, one and one-fourth to one and three-fourths inches. Form 

 slender, the sides of cephalothorax closely approximating along the 

 venter. The fourth of the teeth on lower margin of the beak situ- 

 ated nearly below the second of those on the margin, or below a point 

 between the first and second. Hand of anterior pairs with the fingers 

 half the length of the hand. 



