30 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 93 



is orbicular and placed a short distance from the apertural sinus ; 

 the second placed a little lower, is transverse, very thin, triangular. 

 The ovicell is unknown. 

 Afeasuremeiits. — - 



(ha = o.io mm , rL.c; = 0.65-0.75 mm 



Aperture-^ , ^^^^^^ Zooecmm-^ , 



'■ I /a = o.09-o.io mm 1 /.c = 0.35-0.44 mm 



Number of zooecia in 4 mm^ 15, 16. 



Occurrence. — Balcombian beds at Muddy Creek, Victoria. 



Holotypc.—U.S.'nM. no. 85860. 



SCHIZOPORELLA PUSTULOSA, n. sp. 



Plate 5, fig. 6 



Description. — The zoarium is bilamellar with very narrow fronds. 

 The zooecia are distinct, separated by a furrow, at the bottom of 

 which is a very thin thread, elongated, somewhat oval ; the frontal 

 is a pleurocyst ornamented with seven to nine large granules or 

 pustules and bordered by six very small areolar pores much separated 

 from each other. The aperture is small, oval, a little oblique, em- 

 bedded ; the proximal sinus is very wide, and triangular ; the peristome 

 is very thin, nonsalient and bears four very small and much scattered 

 tuberosities. Ovicell unknown. 



Measurements. — 



r//(7 = o. JO mm . rL.c = 0.60-0.75 ^^^^^^ 



Aperture , Zooecuim<; , 



i I /(/ = o.09 mm 1 /rr = o.35 mm 



Number of zooecia in 4 mm', 22-24. 



Occurrence. — Janjukian, Aire Coastal beds, Victoria. 



Holotype.—XJ.S.^.M. no. 85862. 



SCHIZOPORELLA ARCANA, n. sp. 



Plate 9, fig. 9 



Description. — The zoarium is unilamellar. The frontal is not en- 

 tirely perforated ; the cells are surrounded with an olocystic band and 

 bear below the aperture a macula of the same nature. 



Occurrence. — Balcombian beds at Muddy Creek, Victoria. 



Cotypes.—U.S.^.U. no. 85857. 



SCHIZOPORELLA CLYPEATA, n. sp. 



( 

 Plate 6, fig. II 



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

 separated by a very thin thread, very large, nonsymmetrical, much 



