Plate IL 



Fior. 1. — Oikopleura microstoma, nov. sp. Left side view of the trunk. 



Fio-. 2. — Ditto. Eight side view of the alimentary canal. 



Fio-. 3. — Ditto. Dorsal view of the alimentary canal. 



Fig, 4. — Ditto. Ventral view of the_^alimentary canal. 



Fis. .J. — Ditto. Front view of the tail. 



Fig. G. — Oikopleura cornutogastra, nov. sp. Left side view of the trunk. 



Fia. 7. — Ditto. Dorsal view of the alimentary canal. 



Fig. 8. — Ditto. Ventral view of the alimentary canal. 



Fig. n. — Ditto. Eight side view of the trunk, to show the internal 



structure. 



Fi(^. 10. — Ditto. Left side view of the alimentary canal. 



Fig. 11. — Ditto. Entire body from behind. 



Fig. 12. — Fritillaria Ritteri, nov. sp. Dorsal view of the trunk. 



Fig. 13. — Ditto. Front view of the tail. 



Fio'. 14. — Ditto. Left side view of the trunk. 



Fig. 15. — Ditto. Ventral view of the mouth and of the pharyngeal part. 



Fig. 16. — Ditto. Eight side view of the alimentary canal. 



Fig. 17. — Ditto. Front view of the month. 



