NO. 9 TERTIARY BRYOZOA— CANU AND BASSLER 21 



the frontal is little convex, punctured by rather large tremopores. The 

 peristomice is large, orbicular or elliptical and elongated ; the pensto- 

 mie is very short ; the peristome is rather thick, smooth, little salient. 

 The spiramen is a simple perforation in the short peristomie. The 

 ovicell is hyperstomial, opening largely in the peristome, very large, 

 globular, covered with scattered tremopores. The two aviculana are 

 small, triangular, transverse or oblique, pointed downward. 



Measurements. — 



{hp = o.22-o.2S mm „ . rL." = o.90-i.oo mm 

 Peristomicej ip^^^s mm Zooecmm| 1^^0^^3-0.70 mm 



Number of zooecia in 4 mm", 8-10. . , • , j 



Occurrence.— B3\comhmn beds at Muddy Creek and Janjukian beds 



at FHnders, Victoria. 



Cotypes.— U.S.N. M. no. 85729. 



GIGANTOPORA ELONGATA, n. sp. 



Plate 5, fig- 5 

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

 tinct separated by a furrow bordered by two very thick salient threads, 

 large very elongated, sinuous ; the frontal is a tremocyst, little convex 

 and penetrated by rather large pores. The peristomie is short; the 

 peristomice is orbicular or elliptical and transverse; the peristome is 

 smooth, thick, little salient. The spiramen is large (0.25 mm wide) 

 simple,' not salient, marginated, somewhat concentric. The two 

 peristomial avicularia are large, triangular, with pivot; their beak is 

 pointed, oriented toward the peristomice. 



Measurements. — 



Chp = o.2omm . rL^= 1.25-1.30 mm 



Peristomicej /^^ 0.22-0.25 mm ^°^^^^^\ /r = 0.65-0.75 mni 



Number of zooecia in 4 mm^ 6. 



Occwrr^i/c^'.— Janjukian beds at Gellibrand, Victoria. 



Holotype.—V.S.N.M. no. 85727. 



GIGANTOPORA MINUTIPOROSA, n. sp. 



Plate 5. fig. 9 

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

 distinct, separated by a thick salient thread, elongated, subhexagonal ; 

 the frontal is somewhat convex, pierced with very small pores sepa- 

 rated by small granulations. The peristomie is short, somewhat buried 

 in the distal zooecium ; the peristomice is large, orbicular or elliptical, 

 and transverse, little oblique ; the peristome is salient, thick granulated. 



