22 Froc('('(Un(/s of the Royal Society of Victoria. 



Note. — The paragrupli on page S in Dr. MacgilUvray's Mono- 

 graph, commencing "The extended lateral processes," should 

 follow the next one describing the genus Catenicella, and should 

 appear on page 9, as it is only applicable to that genus, and not 

 to the family of Catenicellida\ 



EXPLANATION OF FIGURES. 

 Plate I. 



ig- 1. — Catenicella orbicularis. 



, 2. — C. macgillivrayi. 



, 3. — C. spenceri. 



I 4. — C. djedala, single zooecium. 



, 5. — C. dfedala, side view. 



6. — C. elegantissima. 



7. — Caloporella grandis. 



8. — C. dendrina. 



9. — C. cordata. 

 10. — C. maculata. 



Plate II. 



Fig. 11. — Caloporella enormis. 



,, 12. — C. rostrata. 



,, 13. — Schizoporellopsis abnormis. 



„ 14. — Claviporella longicollis. 



,, 15. — CI. angusta. 



,, 16. — Strophipora bellis. 



„ 17. — Calpidium morningtoniensis. 



,, 18. — C. morningtoniensis, side view. 



