14 (8) Third maxillipeds with exopod Dichelopandalus leptoceras 



Figure 30. — Dichelopandalus leptoceras: A, carapace, lateral view; B, third maxilliped showing slender simple exopod at base. 



14 (8) Third maxillipeds without exopod Pandalus A 



A (M) Abdomen with small median spine on posterior edge of third and fourth 



segments P. borealis 



Figure 31. — Pandalus horealis; A. carapace, lateral view; B. abdomen, lateral view; C, third maxilliped. 



A (14) Abdomen with no median spines on segments B 



B (A) Distolateral spine of antennal scale exceeding extremely narrowed blade; 



rostrum upturned at about 45° angle P. propinqiius 



Figure 32. — Pamkdus propinqiius; carapace and antenn;il scale, lateral view. 



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