32 
Quarterly Journal. 
EXPLANATION OF PLATES. 
PLATE I. 
Figs. 1, 2, 3, 4. Diagrams described on pages 10 and 13. 
„ 5. Sponge, natural size. See page 14. 
„ C, 7, 8. Spicules from same. See page 15. 
PLATE II. 
Infusoria. See page 17. 
Fig. 
1. 
Euglypha. 
Fig. 10. 
Unknown . 
>» 
2. 
Paramecium. 
«> 
11. 
Vorticella. 
» 
3. 
Trackelocerca. 
»» 
12. 
Unknown. 
>» 
4. 
Coleps. 
m 
13. 
Trackelocerca. 
»> 
5. 
Actinopkrys. 
tt 
14. 
Unknown. 
>> 
6. 
Monad. 
it 
15. 
Chcotonotus. 
»» 
7. 
Astasia. 
tt 
16. 
Euglona. 
»> 
8. 
Vorticella. 
tt 
17. 
Unknown. 
9. 
Actinophrys. 
PLATE III. 
Fig. 1. Bicellaria annulata. Cells, front view. See page 19. 
„ 2. „ „ back view. 
. „ 3. „ Main stem. 
„ 4. „ Natural size. 
,, 5. Serialaria Woodsii. See page 20. 
