20 ME. A. "W. WA.TEES ON BETOZOA FROM EAPALtO 



a 



X 85 



FiG.2. 



Fig. 3. 



X ISO' 



Fig. 1. Stalk of Stirparia from Kurrachee, showing one branch and numerous 



radicals, some of which are club-shaped. 

 Fig. 2. Section of stalk (J) of Stirparia glabra, Hincks, from West Australia, 



showing origin of a radical («). 

 Fig. 3. Transverse section through the stalk of Stirparia glabra, cutting through 



the chitinous cords formed by an internal thickening of the chitinous wall. 



EXPLANATION OF THE PLATES. 



Plate 1. 



X25. 



Fig. 1. Aetea recta, Hincks ; showing ovicells. 

 2, 3. Do. ; ovicells. X 85. 



4. Do. The oTarium fills up most of the lower portion of the zooecium, 



and the tubular prolongation which is bent back carries an ovicell. 

 X 85. 



5. Do. ; showing the position of the polypide in the zooecium. X 85. 



6. Synnotum aviculare, Pieper ; showing the lateral sessile avicularia. 



X25. 



7. Do. ; showing the large pedunculate avicularium . X 85. 



8. Chlidonia Cordieri, Aud. Stalk showing disk, to which the parenchym- 



is attached. X 25. 



9. Do. Zooecium, showing the position occupied by the polypide, and also 



the small separate chamber from which the next zooecium starts. 

 A 85. 



