SYSTEMATIC REPORT 79 



forward almost level with the rostrum (Fig. 12H). Antennular peduncle robust; first segment long 

 with well-developed setose tubercle in the middle of the dorsal surface. Antennal peduncle sub-equal 

 in length to the antennular peduncle; scale broken in all the specimens (Fig. 12 H). Eyes large, with 

 thick, cylindrical eyestalks; large, well-developed ocular papilla; cornea terminal, rounded, not wider 

 than the eyestalks (Fig. 12H). Second thoracic endopod very robust and large; inner margin of carpo- 

 propodus not emarginated but armed near the distal end with two long, powerful spines, which are 



Fig. 12. Boreomysis tattersaUi sp.n. (A-G). A, anterior end of female in lateral view, x 10; B, right antenna, x 12; C, anterior 

 margin of carapace in dorsal view, x 10; D, endopod of second thoracic appendage, x 12; E, distal end of second thoracic endo- 

 pod, x 28; F, telson and right uropod in dorsal view, x 12; G, distal end of telson in dorsal view, x 28. 



Boreomysis bispinosa sp.n. (H-L). H, anterior end of adult female in lateral view, x 10; J, endopod of second thoracic 

 appendage, x 12; K, distal end of second thoracic endopod, x 28; L, telson and right uropod in dorsal view, x 12. 



placed side by side and directed slightly away from each other, so that the robust, well-armed dactylus 

 fits down between them to make a strong prehensile ending to the limb (Fig. 12 J, K). Pleopods of 

 the male. Exopods of the second, third and fourth pairs stouter than the corresponding endopods and 

 armed with shorter setae. In the third pair only, the exopod is considerably longer than the endopod — 

 in the other pairs the two rami are of equal length. Uropods. Exopod longer and broader than the 

 endopod and slightly bowed outward ; unarmed portion of the outer margin very short, less that one- 

 sixteenth of the total length, and terminated by two unequal spines ; endopod slightly longer than the 

 telson; armed with a single long slender spine distal to the statocyst. In one specimen there is a 



