ILLUSTRATIONS 



Text Figures 



Figure Page 



1. Argulus funduli: a, Male, dorsal; 6, supporting ribs in edge of sucking 



disk 13 



2. Argulus latus: a, Female, ventral; b, supporting ribs of sucking disk_ 14 



3. Argulus catostomi: a, Female, dorsal; 6, supporting ribs of sucking 



disk 14 



4. Argulus laticauda: a, Female, dorsal; b, supporting ribs of sucking 



disk 16 



5. Argulus megalops: a, Female, dorsal; b, supporting ribs of sucking 



disk 17 



6. Argulus alosae: a, Female, dorsal; b, supporting ribs of sucking disk_ 18 



7. Calanus tonsus: a, Dorsal surface of female; b, fifth leg 20 



8. Calanus hyperboreus: a, Dorsal surface of female; b, fifth leg of male. 21 



9. Calanus minor: a, Female, dorsal; 6, fifth leg 22 



10. Calanus finmarchicus: a. Female, dorsal; 6, fifth legs 24 



11. Calanus helgolandicus: a, Dorsal surface, female; b, male, left fifth leg. 25 



12. Megacalanus princeps: a. Female, dorsal; 6, fifth leg 27 



13. Neocalanus gracilis, female: o, Dorsal surface; b, end spine of first ex- 



opod; c, fifth legs of male 28 



14. Undinula vulgaris: a, Second segment of second exopod; b, fifth legs 



of male; c, fifth leg of female 30 



15. Eucalanus elongatus: a, Female, dorsal; b, fifth legs of male 31 



16. Eucalanus altenuatus: a, Female, dorsal; 6, fifth legs of male 32 



17. Eucalanus monachus: a, Female, dorsal; b, left fifth leg of male; c, 



fourth leg 33 



18. Rhincalanus nasutus: a, Female, dorsal; b, fifth leg of female; c, fifth 



legs of male 34 



19. Rhincalanus cornutus: a, Female, dorsal; b, fifth leg of female; c, male, 



fifth legs 36 



20. Mecynocera clausi: Female, dorsal 37 



21. Paracalanus parvus: a, Male, dorsal; 6, fifth legs, male; c, fifth legs, 



female 38 



22. Calocalanus pavo: Female, dorsal 40 



23. Calocalanus plumulosus : Female, fifth legs 41 



24. Clausocalanus arcuicornis: a, Female, dorsal; 6, male, dorsal; c, fifth 



legs, male; d, fifth legs, female 42 



25. Pseudocalanus minutus: a, Female, dorsal; b, fifth legs, male 44 



26. Aetideus armatus: a, Female, dorsal; b, fifth leg, male 45 



27. Aetideopsis rostrata: a. Female, dorsal; 6, maxilliped 46 



28. Chiridius armatus: a, Female, dorsal; 6, fifth legs, young male; c, fifth 



legs, adult male 47 



29. Chirundina streetsii: Female, dorsal; 6, fifth legs, adult male 49 



30. Chirundina pustulifera: a, Male, dorsal; b, left, and c, right fifth leg of 



male; d, female urosome, dorsal 50 



31. Gaetanus miles, fevaale: a. Lateral; 6, dorsal 51 



vn 



