l6 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 93 



CRIBRILINA TERMINATA CORONATA, n. var. 



Plate 3, fig. 12 



Description. — The distal portion of the peristome is crozvned with 

 three or four avicularia. 

 Measurements. — 



r/7a = 0.1 5-0.20 mm . fL5' = 0.75-0.90 mm 



Aperturas , Zooeciai , ^ ^ ^ . 



^ 1 /a = o.20 mm 1 /^: = 0.45-0.50 mm 



Number of zooecia in 4 mnf, 10-12. 



Occurrence. — Balcombian at Muddy Creek, and Janjukian at 



Bairnsdale and FHnders, Victoria. 



Cotypes.—V.S.^.M. nos. 85670, 85671. 



CRIBRILINA TRISERIATA, n. sp. 



Plate 3, fig. 10 



Description. — The zoarium is free, unilamellar and formed of only 

 three rows of cells. The zooecia are distinct, separated by a furrow, 

 very elongated, elliptical ; the mural rim is very thick, smooth, entirely 

 surrounding the cell ; the frontal is perforated by small lacunae sepa- 

 rated by small granules. The aperture is semielliptical, transverse ; 

 it is surrounded by a very thick peristome joined with the mural rim. 

 Two oblique, triangular avicularia are arranged symmetrically on each 

 side of the proximal border of the aperture. The lateral zooecia are 

 oblique and longer than the axial zooecia. 



Measurements. — 



r/?a = 0.11 mm . rL^ = 0.90 mm 



Apertura-^ , ^ Zooecium-^ , 



^ I /a = 0.10 mm I /.:r = o.45 mm 



Occurrence. — Janjukian beds at Flinders and Batesford, Victoria. 



Holotype.—Vi.S.^.M. nos. 85668. 85669. 



Family PORINIDAE D'Orbigny, 1852 



PORINA D'Orbigny. 1852 



PORINA FISSURIFERA, n. sp. 



Plate 4, fig. II 



Poriiia gracilis (pars) MacGillivray, Trans. Roy. Soc. Victoria, vol. 4, p. 103, 

 pi. 14, fig. 21, 1895. 



Measurements. — 



{hp = o.i4 mm . rLj= 1.5 mm 



;<. ^^ Zooecium-{ , ^^ ^ ^n 



lp = 0.i4 mm 1 /.cr = o.6o (?) mm 



Number of zooecia in 4 mm', lo-ii. 



