Hyale grenfelli, Chilton. 



275 



bears a regnlar row o£ long setse and there are two rows on 

 the surface near the outer distal end, lying more or less 

 parallel to the distul border, and proximal to these there is 

 one short row of four or five setge and a single seta situated 

 still more pvoximally ; the dactyl is small, very much nar- 

 rower than the propod, and bears at the end a long, stout, 

 curved seta which is proportionately much more prominent 

 than the corresponding seta on the dactyl of the male. It 

 will be seen that the maxilliped in the female presents the 

 ordinary characters common to allied species of Hyale, and 

 that its terminal joints show none of the numerous transverse 



Fi-. -2. 



Hyale grenfelli, 2 . First gnathopod. 



rows of long fine setse on the surface that are so charac- 

 teristic of the male. 



In the gnathopoda the first pair (fig. 2) are, on the whole, 

 similar to those of the male, but more slender ; the side-plate 

 is large, produced a little anteriorly, so that it is widest 

 below ; the carpus bears a fringe of setaa on its posterior 

 margin, as in the male, the propod is much more slender 

 than the corresponding joint in the male, only widening very 

 slightly distally, and its posterior border bears only a small 

 tuft or short row of setaa near the centre instead of having 

 nearly the whole of the margiu fringed with a row of setsG as 



