Abstract
Plate I. Ceratophyllus hagoromo new species. 1. dorsal part of tergum VIII of male; 2. process of clasper, movable finger, and sternite IX of male; 3. sternite VIII of male; 4. crochet; 5. pygidium of spiracle of tergum VIII, male; 6. spermatheca and sternite VII of female; and 7. varieties in outline of sternite VII, female. Plate II. Ceratophyllus hagoromo new species. 1. head and prothorax of male; 2. head and prothorax of female; 3. manubrium of male; 4. sternite VIII, male; 5. spermatheca; and 6. sternite VII, female. Plate III. 1. Kanmuri-jima (on left), nesting site of streaked shearwater, Puffinus leucomelas in Wakasa Bay; 2. forest on Kanmuri-jima; 3. entrances to burrows of shearwaters; 4. young shearwater dug from nest, 8 October 1958; and 5. examining material from shearwater's nests.
