TRANSACTIONS OF MICROSCOPICAL SOCIETY. 
DESCRIPTION OF PLATE II. 
Figs. 1, 2, 3, 4, 5. — Avicularium of Notamia hursaria. 
1. — Avicularium in the closed state. 
2. — Avicularium open, exhibiting the tactile (?) brush. 
3. — Avicularium viewed in front, to show an opening below the beak. 
4. — Avicularium in the early stage of developement. 
5. — Closed avicularium, more magnified, showing the muscular structure 
and the internal organ. 
Figs. 6, 7, 8. — Avicularium of Bugula ^lumosa. 
6. — In the closed state. 
7. — Open, showing the tactile (?) brush. 
8. — Open, to show the diaphragm. 
Figs. 9, 10, 11. — Avicularium of Bugula avicularia. 
9. — Open, to show the tactile (?) brush (more magnified). 
10. — Two avicularia grasping each other. 
11. — One partially open (less magnified). 
12. — Avicularium of Scrujpocellaria scruposa. 
13. — A small vermicule captured by two avicularia in Scrujpocellaria 
scruposa. 
14. — Avicularium of Bugula plumosa, in the early stage of developement. 
