Zoology.-] NATURAL HISTORY OF VICTORIA. [Peli/zod. 



Plate 166, Fig. 3. 



CELLEPORA INTERMEDIA (McG.). 



Description. — Zoarium loosely adnate or partly free. Zooecia large, confused, 

 oblique or nearly horizontal, faintly g-ranular; mouth large, straight below; rostrum 

 usually wanting, but in some zooecia existing as a small elevation below the mouth, 

 with a conspicuous avicularium on the side. Ooecia small, globular, sub-immersed, 

 faintly granular. Vicarious avicularia scattered irregularly, with large spoon-shaped 

 mandibles. 



Reference. — P. H. MacGillivray, Trans. Roy. Soc. Vict., 1868. 

 QueensclifF. 



Explanation of Figures. 

 Plate 166. — Fig. 3, specimen, natural size. Fig. 3a, portion magnified. 



Plate 166, Fm. 4. 

 CELLEPORA PROLIFERA (McG.). 



Description. — Zoarium expanded, loosely adnate, surface verrucosa and raised 

 into thin, bilaminate, ligulate or wider ridges expanding upwards. Marginal zooecia 

 horizontal, barrel-shaped; central zooecia confused, immersed; mouth nearly straight 

 below; pre-oral rostrum with a small avicularium at one side of a sinus of the 

 peristome, and a very short, conical process ; this process frequently absent, and the 

 avicularium then situated on one side of the oral sinus. Ooecia globular, smooth or 

 finely granular. 



Portland, Mr. Maplestone. 



Of a reddish or yellowish-brown colour. The largest speci- 

 men I have examined measures 6 by 4i inches in diameter. It 

 occurs as a comparatively thin, loosely adnate crust, covered 

 with rounded mamillary projections. These projections usually 

 expand upwards, the sides anastomosing with others so as fre- 

 quently to leave spaces bridged over by their junction. 



Explanation or Figukes. 



Plate 166. — Fig. 4, growing edge, magnified. Figs. 4a and 46, other portions of the same 

 specimen. 



Plate 168. — Fig. 11, opercula. 



C 247 ] 



