Tertiary Folyzoa of Victooio. 237 



British Museum," vol, i., p. 178, pi. viii., figs. 8 and 9, but it is a 

 very much smaller form, the zooecia are not half the width, and 

 thefy are not half so numerous in the series, nor so regularly 

 disposed. It is also similar to Ji. Iransennata Waters (Q.J.G.S., 

 vol. xl.. p. 689), but the zooecia are fewer in series and clearly 

 defined, not, as in that species, totally immersed with the 

 apertures only exserted, and there are no small tubular open- 

 ings, as in R. trmisennatd. 



Stomatopora gippslandii, n. sp. (PI. VIII., Fig. 14). 

 Znarium adherent. Zooecia in single or double series, somewhat 

 rugose, distal part slightly exserted ; peristome elevated. Length 

 of zooecia 0.5 to 0.7 mm. ; width, 0.25 to 0.35 mm. 



Locality, Mitchell River (J. Dennant). 



A small fragment on the interior of a bivalve shell ; it is 

 near S. granulata (M. Edwards), but the zooecia are very much 

 shorter. 



Spipopora minuta, n. sp. (PI. VIII., Fig. 1.5). 

 Zoariuni slender, branching. Zooecia small, 0.2 to 0.4 mm. 

 long, 0.07 to 0.1 mm. wide ; distal part slightly cuiwed out- 

 wards ; regularly disposed. 



Locality, Mitchell River (J. Dennant). 



This is a yqxj neat, small-celled species, and a great contrast 

 to that next described. 



Spiropora gigantea, n. sp. (PI. VIIL, Fig. 16). 

 Zoarium very robust, branching. Zooecia large, 0.6 to 0.9 mm. 

 long; 0.15 to 0.25 mm. wide; distal part curved outwards. 

 Thyrostome contracted, with an annular peristome. 



Locality, Waum Ponds (T. S. Hall). 



This is a remarkably robust species, the zooecia being, com- 

 paratively speaking, enormous (the magnification of the figure 

 is only about one-half that of the figure of *S'. minuta). At the 

 base of three zooecia are three hemispherical processes, the func- 

 tion of which is problematical. 



Entalophopa sparsa, n. sp. (PI. VIIL, Fig 17). 

 Zoarium branched. Zooecia undefined, sparsely and irregularly 

 disposed ; distal portion turned outwards. Thyrostomes 0.3 to 

 0.8 nma. apart. 



