JOURNAL OF MICROSCOPICAL SCIENCE. 
EXPLANATION OF PLATE XXII, 
Illustrating Professor Giard’s Memoir on the Ortho- 
nectida/' 
Fig. 1. — Rhopalura ophiocorruB (natural state). 
Fig. 2. — Short form, or young phase (natural state). 
Fig. 3. — Adult animal, treated by reagents and showing the muscular 
bands. 
Fig. 4. — Immature animal (acetic acid and carmine). 
Fig. 5. — Intoahia gigas (profile view). 
Fig. 6. — The same seen from the dorsal aspect, and treated in such a 
way as to show the ectodermal cells. 
Fig. 7. — The same with the ectoderm removed, in order to t>how the 
endoderm. 
Fig. 8. — Very young blastula of Intoshia. 
Fig. 9. — The same more advanced. 
Fig, 10. — Commencement of delamination. 
Figs. 11, 12, and 13. — Formation of planula. 
Figs. 14 and 15. — Very young sporocysts of Intoshia still rotalnin- 
remains of the ectoderm. 
Fig. 16. — More advanced sporocyst, opened in order to show its buds. 
Fig. 17. — Portion of the same very highly magnified. 
Fig. 18. — Bud in the condition of a planula. 
Figs. 19, 20, and 21. — Stages in the segmentation of the egg of 
Rhopalura. 
