134 A MONOGRAPH OF THE TERTIARY POLYZOA OP VICTORIA. 



with slight irregularly-annular ridges ; stem consisting of closely-packed angular 

 tubes, internally spinose. On one side, about midway between the junction of the 

 stem and the margin, are two thick stout calcareous tubes projecting a considerable 

 distance. 

 M. 



DiscofascUjera differs from Defrcuicla and other stipitate forms in having the 

 zooeeia covering the whole upper surface and not arranged in any definite order. 

 The interstitial tubes or pores, which are very few, are smaller but otherwise 

 indistinguishable. It is difficult to say what the large projecting tubes represent. 

 They may possibly communicate with an internal ocecium, but that is improbable, 

 as such a structure is unknown among the Cyclostomata. 



Heteropora, Blainv. 



1. H. uodalosa, n.sp. PL XXI., fig. 14. 



(For description see Appendix.) 



2. H. pisiformis, n.sp. PL XXI., fig. 15. 



(For description see Appendix.) 



Family Frondiporid^e. 



Supercytis, D'Orb. 



1. S. digitata, D'Orb. PL XXII., figs. 1, 2. 

 (For description see Appendix.) 



Fasciculipora, D'Orb. 



1. F. fruticosa, McG. PL XXII., fig. 3. 

 (For description see Appendix.) 



2. F. dhsticha, n.sp. PL XXII., fig. 5. 

 (For description see Appendix.) 



Frondipora, Imperato. 

 (See Appendix). 



1. F. palmata, Busk. PL XXII., figs. 8, 9. 

 Frondipora palmata, Busk. B.M.C., III., 38. 



