76 



Cumacea: 9. Leuconidae, 2. Eudorella 



sinus, -which is bounded below by a somewhat upturned sharp tooth. The sinus 

 in the d is much smaller than in the Q. The lower margin is serrate for 

 some distance back from the antero-lateral corner. The long 5*^ pleon segment 

 dorsally projects a pair of long setae over the short telsonic segment. An- 

 tenna 1 O carrying many plumose setae, P* joint broader but shorter than 

 either of "the subequal 2"<i and 'S*^ joints, 3-jointed flagellum as long as 3<i 

 joint of peduncle, 1-jointed accessory nearly three-quarters as long as the 

 long 1^* joint of the principal flagellum; in the d the flagellum is 4-jointed, 



Fig, 41. 



E. emarginata (Kroy er), anteuna 1 2 



(after Saiv). 



Fig. 40. 



E. emarginata (cJ) (Kroyei) 



(after Sars). 



Fig. 42. 

 emarginata (5) (Kroyer), an- 

 tenna 2 (after Sars). 



its 1*** joint shorter than the accessory, carrying at the base a dense fascicle 

 of sensory filaments. Antenna 2 of 9 with 5 plumose setae on the basal 

 joint. Peraeopod 1 with 6^^ joint much longer than 5*^ Peraeopod 'J, ante- 

 penultimate joint subequal to next preceding joint, terminal joint at least as 

 long as antepenultimate, broad, spatulate, with many radiating spines. Pe- 

 duncle of uropods a little longer than the exopod, about equal to the first 

 joint of the endopod, which is fringed on the medial margin with numerous 

 unequal spines, and in the d has also several slender setae on the upper 



