368 DISCOVERY REPORTS 



The endopod of the third cormopod is now segmented and geniculate. The fourth cormopod is 

 bifurcate and the fifth is present as a simple bud. The second to fifth cormopods bear gill-lobes. 

 All five pairs of pleopods are now setose. 

 The telson remains the same and still carries seven terminal spines. 



Fig. 1 8. Euphaasia tenera. a, second furcilia, lateral view; b, cephalothorax, dorsal view; 

 c, third furcilia, lateral view; d, cephalothorax, dorsal view. 



Fourth furcilia. Twenty specimens present. Seven examined and measured. Length range 5-3- 

 5*7 mm.; average length 5-5 mm. (Fig. 190, b). 



The rostrum is a trifle more pronounced, but otherwise unchanged. 



The flagella of the first antennae are elongated and segmented. 



The endopod of the fourth cormopod is now segmented and geniculate. The fifth is bifurcate 



