516 GEOLOGICAL SURVEY OP THE TERRITORIES. 



EXPLANATION OF PLATE I. 



LiMNETis MUCRONATUS Packard. 



Fig. 1. The male, enlarged ; the first antennae unfortunately omitted by the artist. 



Fig. 2. Second antenna of female, x i ToUes objective A eye-piece. 



Fig. 3. Either the fiirst or second foot of female ; P, first endite or gnathobase ; 



P-l^, second to sixth endites; br, gill (giU-sack; br', upper, h-", lower 



end of flabellum, X i A. 

 Fig. 4. One of the anterior feet of female, X i A. 

 Fig. 5. Hand or fourth endite of the first foot of male ; p, palpiform appendage of 



the fourth endite; l^, the fifth exopodite, and P, the sixth, modiiied to form 



a curyed, finger-like, grasping spine ; comb, the comb-like inner edge of 



fourth endite of the hand. 

 Fig. 5a. Branchia {br) of the same leg. 

 Fig. 6. Telson or end of the body of the female. 



Fig. 1 drawn by J. H. Emerton ; Figs. 2 to 6 drawn, and details filled in with camera 

 lucida, by the author. 



