A MONOGRAPH OF THE TERTIARY POLTZOA OP VICTORIA. 105 



1. T. cereoides, Ellis and Solander. PI. IV., fig. 1. 



Cellaria cereoides, E. and S., Zoophytes, 26 ; Lamouroux, P.C.F., 127 ; Tubu- 

 cellaria cereoides, McG., T.RS.V., Nov., 1884 ; id., P.Z.V., 18. 



Zocecia ovate ; surface pitted ; tliyrostome subcircular, straighter below, peri- 

 stome thickened and turned forwards, its outer surface obscurely grooved and 

 surrounded at the base by a raised line. 



Var. areolata (fig.) Zocecia much elongated, separated by narrow raised lines, 

 depressions or areolae on surface much elongated. 



M.O. ; M. Recent. 



The specimens which I have of the normal are very fragmentary, and, although 

 sufficient for identification, are scarcely perfect enough for figuring. The var. 

 areolata, from Muddy Creek, has the zocecia much elongated, and the pits or areolae 

 are very much elongated. It might be advisable to consider it as a distinct species, 

 but I think not. 



2. T. marginata, n.sp. PL IV., figs. 2, 3. 



Zooecia ovate, flattened in front, with distinct raised margins ; surface thickly 

 covered with large, round, elevated pores ; tliyrostome with the peristome thick, 

 much raised, projecting forwards at nearly a right angle, its outer surface granular. 

 No special zooecial pore. 



S.P.; M.C. 



The zooecia are bordered by distinct raised margins, those of contiguous zooecia 

 being separated by a narrow groove. The pores are raised and tubular. In the 

 most perfect peristomes the edge is slightly expanded, everted and sinuous. 



Family PROSTOMARiiDiE. 



Zoarium erect, branched. Zocecia uniserial, alternate, cylindrical, opening on 

 one aspect forwards and outwards, posterior surface separated from the anterior by 

 a narrow raised line; peristome much produced. 



Prostomaria, n.g. 

 Characters as for the family. 



1. P. gibbericollis, n.sp. PI. III., fig. 28. 



Each zooecium arising from the posterior and lateral part of the preceding by a 

 broad base, the upper part turned forwards ; anterior surface finely punctate, with 

 small bordered pores ; thyrostome with the peristome much produced, forming a 



