Fig. 



1. Diaptomiis gracilis Sars. Fifth foot of male. 



2. " amblyodoii Marenzeller. Fifth foot of male. 



3. " oregonensis Lilljeborg. Fifth foot of male. 



4. ** tryl>omi Lilljeborg. Fift foot of male. 



5. " castor Jurine. Fifth foot of male. 



6. " lilljeborgi De Guerne and Richard. Fifth foot of 



male. 



7. " cceriileus Fischer. Fifth foot of male. 



8. ** glacialis Lilljeborg. Fifth foot of male. 



9. " leptopus Forbes. Fifth foot of male. 



10. " sigiiicaudatus Lilljeborg. Abdomen. 



11. " roubaui Richard. Abdomen. 



12. " serricornis Lilljeborg. Antepenult joint of right 



male antenna. 



13. " wierzejskii Richard. Antepenult joint of right male 



antenna. 



