NO. 9 TERTIARY IJRVOZOA CANU AND BASSLER I3 



MACROPORA QUADRISERIATA, n. sp. 



Plate 3, fig. 3 



Description. — The zoariuni is free, vinciilar, quadriscrial. The 

 zooecia are distinct, separated by a thin sahent thread, elongated, 

 hexagonal ; the cryptocyst is large, little convex, perforated by nu- 

 merous pores and ornamented with small tuberosities. The aperture 

 is subterminal, large, semielliptical, transverse ; the proximal border 

 is straight with two small, lateral indentations ; the peristome is very 

 thick and salient. At the base of each zooecium there are two polygonal 

 areas outlined by the ramifications of a separating thread. 



Measurements. — 



r/m = 0.1 5-0.20 mm . fL2=i.2K mm 



Aperture^ , ^^^^^^ Zooecium-^ , 



^ 1/0 = 0.20-0.25 mm { /- = o.75 mm 



Occurrence. — Janjukian beds at Bairnsdale, Victoria. 



Hohtype.—V.S.'N.M. no. 85705. 



Division PSEUDOSTEGA Levinsen, 1909 



Family CELLARIIDAE Hincks, 1880 



CELLARIA Lamouroux, 1812 



CELLARIA ORBICULARIA, n. sp. 



Plate 4, fig. 3 



Description. — The segments are quadrangular. The zooecia are 

 distinct, separated by their mural rim, much elongated, hexagonal ; 

 the mural rim is thick, rounded, regular, the cryptocyst is shallow, 

 very little convex, finely granulated. The opesium is large, orbicular. 

 without any proximal denticle, margined by a thick pad. The ovicell 

 is endotoichal ; it is closed by an orbicular lamella forming a large 

 area above the opesium. 



Measurements. — 



nta = 0.20 mm . fZ^.c^^ 0.90-1. 00 mm 



Apertures , ^ Zooecium^ , ^ ,^ 



1 ]la = 0.20 mm 1 /.:? = o.45 mm 



Occurrence. — Janjukian beds at Anticline Creek, Dartmoor, 



Victoria. 



Holotype.—V.S.N.M. no. 85623. 



CELLARIA ATTENUATA, n. sp. 



Plate 4, fig. 4 



Description. — The segments are long and rounded distally. The 

 zooecia are distinct, separated by a very thin salient thread, somewhat 



