XIV 



LIST OF ILLUSTRATIONS. 



Page. 



Radials, Basals, and Infrabasals of Isucrinns decorus (a mature specimen) 672 



Radials, Basals, and Infrabasals of Metacrinus rotundus 673 



Ui^permost columnar of Metacrinus rotundus 673 



Isolated Infrabasals of Metacrbtus superhus 675 



Section of Calyx of Metacrinus superhus, showing the infrabasals in position 675 



Ventral view of isolated Infrabasals of Metacrinus superbus 675 



Dorsal view of isolated Infrabasals of Metacrinus superbus 676 



Corneocyclas dawsi Bartsch 682 



Holophri/xus giardi. Adult female. Dorsal view. Lateral view. Ventral 



view 690 



Holophryxus giardi. Immature female and host 691 



Holophryxus giardi. Immature female. Dorsal view. Lateral view. Ventral 



view 692 



Holophryxus calif orniensis. Adult female and host 693 



Holophryxus califoryiiensis. Male 694 



Arlhrophryxus beringanus. Adult female. Dorsal view. Ventral view 695 



Arthrophryxus beringanus. Adult male 695 



Ctenoludus hujeta 703 



PLATES. 



Facing page. 



1. Parasites of Bermuda Fishes 126 



2. Parasites of Bermuda Fishes 126 



3. Parasites of Bermuda Fishes 126 



4. Parasites of Bermuda Fishes 126 



5. Parasites of Bermuda Fishes 126 



6. Parasites of Bermuda Fishes 126 



7. Parasites of Bermuda Fishes 126 



8. Parasites of Bermuda Fishes 126 



9. Parasites of Bermuda Fishes 126 



10. Parasites of Bermuda Fishes 126 



11. Parasites of Bermuda Fishes 126 



12. Parasites of Bermuda Ffshes 126 



13. Parasites of Bermuda Fishes 126 



14. Parasites of Bermuda Fishes 126 



15. Parasites of Bermuda Fishes 1 26 



16. West American Mollusks 262 



17. The female of Perissopus communis, and the \ariety stimpsoni 490 



18. The male of Perissopus communis 490 



19. The female of Echthrogaleus coleoptratus 490 



20. The female of Eclithrogaleus denticulatus 490 



21. The female of Echtlrrogaleus torpedinis 490 



22. The female of Dinematura ferox 490 



23. The female of Dinematura producta 490 



24. The female of Dinematura latifolia 490 



25. The male of Dinematura latifolia 490 



26. The male of Pandarus brevicaudis 490 



27. The female of Pandarus bicolor 490 



28. The male and female of Pandarus cranchii 490 



29. An Adult and a young Female of Pandarus smithii 490 



30. The male and a young female of Pandarus sinithii 490 



31. The female of Pandarus satyrus 490 



32. The female of Pandarus sinuatus 490 



