F. J. Meggitt 
(5) Moniez, R. (1881). Theses pr6sent6es a la Faculty des Sciences de Paris. Paris, 
1881. 
(6) Pasquale, a. (1890). Le tenie dei polli di Massana. Giorn. intern, sc. med. 
Napoli, Ann. xii. 
(7) Smith, Pox and White (1907-08). Contributions to Systematic Helminthology. 
Univ. Penn. Med. Bull., xx. 283. 
EXPLANATION OF PLATES VI AND VII. 
REFERENCE LETTERS. 
h. Anterior nerve mass. c.s. Cirrus sac. d.ovd. Dorsal portion of oviduct, g.p. Geni¬ 
tal pore. ov. Ovary, p.c. Parenchymatous capsule, r. Rostellum. r.c. Hemispherical 
core. r.r. RosteUar ridge, r.s. Receptaculum seminis. sh.gl. Shell-gland. t. Testis. 
Mi. Uterus, m. Vagina. M.d. Vas deferens. iJ.ovd. Ventral portion of oviduct, m.s. Enlarged 
portion of vas deferens, y.d. Yolk-duct. y.g. Yolk-gland. 
PLATE VI. 
Fig. 1. Scolex. 
Fig. 2. Proglottis nearly ready for detaching. 
Fig. 3. Sexually mature proglottis. 
Fig. 4. Longitudinal section through scolex. 
Fig. 5. Reconstruction of male reproductive system. 
Fig. 6. Reconstruction of female reproductive system, from transverse sections. 
PLATE VII. 
• 
Figs. 1-18 illustrate spermatogenesis. 
Figs. 1-3. Cells of young testis, various sizes, x 2300. 
Fig. 4. Cells ready for fusion, x 2300. 
Fig. 5. A further stage, foreshortened view, x 1500. 
Figs. 6-7. Two stages during fusion, x 1500. 
Fig. 8. Later stage, cytophore after the nuclear stages, x 1500. 
Fig. 9. Cytophore with budding spermatids, x 2300. 
Fig. 10. Cytophore with developing blastophore, x 1500. 
Figs. 11-12. Later stage of cytophore, x2300, x 1800. 
Fig. 13. “Morula” stage, x 1500. 
Fig. 14. Developing spermatozoa, x 1500. 
Figs. 15-18. Developing spermatozoa from the receptaculum seminis. Fig. 18 shows 
only the head ends of the spermatozoa, x 1500. 
Fig. 19. Reconstruction of the female reproductive system from longitudinal horizontal 
sections. 
