68 Proceedings of the Royal Society of Victoria. 



Schizopopella subgranulata, n. sp. (PL VII., Fig. 9). 



Zooecia broad, hexagonal, with smooth small regular granu- 

 lations. Tliyrostonie arched above ; rather shallow sinus in lower 

 margin. A very small oval avicularium on a raised rounded 

 base immediately below the thyrostome. 



Locality. — Cape Otway (J. Dennant). 



A single specimen with four perfect zooecia. 



Schizopopella flabellata, n. sp. (PL VIII., Figs. 10, \^a) 



Zoarium flabellate. Zooecia oval or vasiform ; surface 

 punctured. Thyrostome orbicular, sinus moderate. 



Locality. — Jiramys Point, Reeves River (J. Dennant). 



This species is remarkable for the very elegant flabellate form 

 of the zoarium. The zooecia are regularly arranged on both 

 sides of a calcareous lamina, on the margins of which are narrow 

 ridges, presumaljly the first part formed of the young zooecia. 

 The zooecia on this specimen are much worn, but there was a 

 small fragment with zooecia perfect from which Fig. lOa is drawn. 



Schizopopella fenestPata, Waters. S. profunda, McG. 

 (PL VIII., Fig. 11). 



Dr. MacGillivray described and figured in his Monograph of 

 the Tertiary Polyzoa of A^ictoria (p. 83, pi. xL, Fig. 14.) S. 

 profunda, and gives as a synonym "?S. fenestrata, Waters," but 

 does not mention any particulars in which his species differs fi'om 

 that of Mr. Waters. A comparison of the descriptions (Mr. 

 Waters gives no figure) seems to show that they are not identical, 

 the principal character in common being the great depression in 

 which the thyrostome is placed, but the specimen from which 

 Fig. 11 is drawn enables me to reconcile the differences. In this 

 specimen the zooecia are " indistinct," as described by Mr. 

 Waters^ (S. fenestrata), but I have others in which they are 

 " separated by narrow raised lines " (S. profunda). There ax'e 

 very large avicularia " between the zooecia " (S. fenestrata) and 

 also on the "extreme lateral zooecia" (S. profunda). In the 

 description of S. fenestrata no mention is made of any spines 



1 Q.J.G.S., vol xxxvii., p. 339. 



