NO. 9 TERTIARY BRVOZOA CANU AND BASSLER II 



SELENARIA GRANDICELLA, n. sp. 



Plate 3, figs. I, 2 



Description. — The zoarium is orbicular, cupuliform, little convex. 

 The zooecia are distinct, separated by a shallow furrow, very large, 

 hexagonal, elongated or transverse ; the cryptocyst is small, smooth, 

 somewhat concave. The opesium is very large, trifoliate ; the distal 

 border bears a kind of vestibular arch ; the lateral borders are some- 

 times a little salient ; the proximal border is convex ; the opesiular 

 indentations are wide, deep, rounded. The vibracula are very large, 

 auriform, primoserial ; the inner distal portion is shallow. On the in- 

 ner face of the zoarium there are broad radial ribs, convex, each 

 perforated by two rows of large irregular lunularian pores. 



Measurements. — 



. r/?o = o.35 mm . fL^^o.so mm 



Opesium-^ , _ ^ Zooecium<^ , 



^ [/o = o.3o mm [^ /5' = o.40-o.50 mm 



Occurrence. — Balcombian beds at Muddy Creek, Victoria. 



Holotype.—V.S.'^.M. no. 85864. 



Family STEGANOPORELLIDAE Hincks, 1884 

 SIPHONOPORELLA Hincks, 1880 

 SIPHONOPORELLA LIVINGSTONEI, n. sp. 



Plate 3, fig. 5 



Description. — The zoarium is unilamellar. The zooecia are distinct, 

 separated by a shallow furrow, elongated, elliptical, narrowed at the 

 base; the mural rim is somewhat salient, slightly thickened, granu- 

 lated ; the cryptocyst is shallow, flat, granulated. The opesium is large, 

 terminal, irregular ; the polypidian tube is very salient, oblique, wide. 

 Measurements. — 



Diameter of polypidian tube, 0.12-0. 15 mm 

 Width of opesium, 0.35 mm 



. ['Lr = 0.75-1.00 mm 

 Zooecium -< , 



I /:: = o.45 mm 



Number of zooecia in 4 mm", 12. 



Occurrence. — Balcombian beds at Muddy Creek, Victoria. 



Holotype.—\J.S.]>^.yi. no. 85884. 



SIPHONOPORELLA FILIPARIETIS, n. sp. 



Plate 3, fig. 4 



Description. — The zoarium is unilamellar. The zooecia are distinct, 

 separated by a deep furrow, elongated, ogival ; the mural rim is round, 



