FISHERY BULLETIN: VOL. 78, NO. 2 



Figure lO. — Euphausia ecjwia, northern form. Antenna, ventral view: a 1-2, furcilia IV with variation in segmentation of endopod; b, 

 furcilia V. Maxillule and maxilla, posterior view: c-d, juvenile I. Leg 2 exopod and legs 7-8: e-g, juvenile I (setules omitted in b-e). 



Leg 2 exopod with 6 or 7 (6) setae, 1 of 28 appen- 

 dages examined with additional proximal seta on 

 inner margin common in furcilia VI and juvenile I 

 (Figure lOe); gill sometimes with bud of fourth 

 lobe. 



326 



Leg 3 exopod with 5-7 (6) setae, 1 of 34 appen- 

 dages examined with proximal seta as on leg 2 

 exopod; gill sometimes with bud of fourth lobe. 



Leg 4 endopod setose; exopod with 4-6 (5) setae; 

 gill sometimes with bud of fourth lobe. 



