NO. 9 TERTIARY BRYOZOA CANU AND BASSLER 5 



bifurcated apophysis on one side only; the opesium is elongated, ellip- 

 tical, asymmetrical. The proximal gymnocyst bears the ovicell or a 

 large, transverse, inconstant, elliptical avicularium. The ovicell is 

 hyperstomial, globular, smooth, closed by the opercular valve. 



Meosit remen ts . — 



. rAo = 0.37-0.45 mm . fLc = o.7S nim 



Upesiunii , Zooecium-^ , 



^ [^ /o = 0.1 5-0.20 mm ] /5 = 0.30-0.40 mm 



Occurrence. — Balcombian beds at Muddy Creek, Victoria. 



Holotype.~U. S.N M. no. 85794. 



ELLISINIDRA Canu and Bassler, 1933 

 ELLISINIDRA PYRIFORMIS, n. sp. 



Plate 4, fig. 7 



Description. — The zoarium incrusts shell fragments. The zooecia 

 are distinct, separated by a very shallow furrow, little elongated, 

 elliptical, or almost transverse with a general pyriform aspect. The 

 mural rim is very thin, filiform, rounded, smooth ; it bears distally 

 a small triangular, transverse avicularium ; the opesium is very large 

 and of the same form as the zooecium. The ovicell is small, convex, 

 hyperstomial, closed by the operculum. 



Measurements. — 



. r/zo = 0.35-0.40 mm . fLs'^ 0.45-0.50 mm 



Opesmm^^ , ^ ^ ^ Zooecmm^ , ^ .^ ^ ^^ 



^ 1 /o = 0.30-0.40 mm 1 /.:; = 0.40-0.50 mm 



- Occurrence. — Janjukian beds at Flinders and Mount Gambler : 



Balcombian beds at Muddy Creek, Victoria. 



Cotypes.—V.S.N.M. nos. 85691-85693. > 



STAMENOCELLA Canu and Bassler, 1917 

 STAMENOCELLA FUSIFORMIS, n. sp. 



Plate I, lig. 8 



Description. — The zoarium is free, cylindrical. The zooecia are 

 distinct, separated by a common mural rim, very elongated, fusiform; 

 the gymnocyst is short, rectangular, very little convex, smooth. The 

 mural rim is thin, rounded, smooth ; the opesium is very much elon- 

 gated, elliptical, terminal. The gymnocyst bears sporadically an orbic- 

 ular avicularium. The ovicell is unknown. 



Mcasurcinents. — 



. r/io = o.45 mm „ . rL^ = o.70 mm 



Opesium^ , ^.^^.Q Zooecmm<^ ' 



'■ 1 /o = 0.1 5-0. 18 mm 1 Is = 0.2^ mm 



Occurrence. — Balcombian beds at Muddy Creek, Victoria. 



Holotype.— U.S.N. M. no. 85881. 



