LIST OF ILLUSTRATIONS. XIX 



Facing page. 



15. Caligus species from the West Indies 672 



16. Tlie female of Caligodes 7negacej)li<ilu>< 672 



17. The female of Eehetus typicui^ 672 



18. Lepeo]>}itlu'ini>< longlpes and Lepeoplttheirus thompsoiii 672 



19. The male and female of Lepeophtheirus nordmannU 672 



20. The male and female of Lepeophtheirus hlppoglossi 672 



21. The male, female, and nauplius of LepeopJdhelrus edwaiuht 672 



22. The male and female of Lepeophtlieirus dissimidaius 672 



23. Lepeophtheirus parvirentris and Lepeophtheirus bifurcatus 672 



24. The male and female of Lepeoplitlieiriis salmonis (i72 



25. Lepeophtheirus species and Anuretes heclrlii 672 



26. The male and female of Caligus teres 672 



27. The male and female of Caligus centrodonti 672 



28. Lepeophtheirus iimominatus and Lepeophtheirus chilensis 672 



29. The male and female of Homoiotes paUiafa 672 



30. The Ramparts, Mackenzie River 673 



31. Fort McPherson on Peel River 688 



32. Fort Chipewyan, Athabasca Lake 702 



33. Fort Resolution, Great Slave Lake 734 



34. Fort Good Hope 750 



35. Bladder worm ( Tivnia diamissonii) from Porpoise 822 



