NO. 9 TERTIARY BRYOZOA CANU AND BASSLER 3 1 



elongated, of little width ; the frontal is little convex and formed by 

 a large pleurocyst forming a smooth, elliptical cushion or shield ; it 

 is surrounded laterally by a double row of areolar pores and proxi- 

 mally by four rows of scattered pores. The aperture is oval, axially 

 disarranged, terminated by a narrow proximal sinus rounded at its 

 extremity. A small oral avicularium, adjacent to the peristome is 

 placed between the anter and the sinus. Another small zooecial avicu- 

 larium is placed laterally on the exterior line of areolar pores and a 

 little below the level of the proximal sinus. Ovicell unknown. 



M easu rem ents. — 



(ha = o.26 mm . fLs=i.4.o mm 



Aperturej^^^^^^ mm ^^<^^'^\ /^z.0.65-0.75 mm 



Number of zooecia in 4 mm'. 6. 



Occurrence.- — Janjukian beds at Anticline Creek, Dartmoor, 

 Victoria. 



Holotype.—US.'NM. no. 85855. 



Subfamily Exochellinae Bassler, 1935 



BATHOSELLA Canu and Bassler, 19 17 



BATHOSELLA LATICELLA, n. sp. 



Plate 9, fig. 2 



Description. — The zoarium is free, bilamellar, with narrow fronds. 

 The zooecia are distinct, separated by a very deep furrow, elongated, 

 globular, very wide; the frontal is rather convex, finely granular, 

 pierced laterally by two or three pores. The aperture is large, ellipti- 

 cal, transverse, somewhat oblique ; the peristome is thick, a little salient, 

 smooth. On one zooecial margin there is a small triangular avicu- 

 larium with pivot oriented distally. 



Measurements. — 



r/m = o.i4 mm rLr = 0.85 mm 



Aperture-^ , ^ Zooecuim-^ , ^ ^^ ^ ^^ 



^ I la = o.20 mm I /;: = 0.50-0.55 mm 



Number of zooecia in 4 mm", 12. 



Occurrence. — Janjukian, Aire Coastal beds, Victoria. 



Holotype.—U.S.'^^.'M. no. 6021 1. 



BATHOSELLA BULBOSA, n. sp. 



Plate 9, fig. I 



Description. — The zoarium is free, bilamellar, of narrow fronds. 

 The zooecia are distinct, separated by a deep furrow, large, elongated 

 bulbous; the frontal is very convex, marginated by two to four large 

 3 



