Art. XII. — Further Descri2')tions of the Tertiary Polyzoa 

 of Victoria. — Part V. 



By C. M. MAPLESTONE. 



(With Plates XXIII., XXIV.) 

 [Eead November, 8th 1900.] 



Cellapia grandis, n. sp. (PL XXIIL, Fig. 1). 



Zoarium compressed, ligulate, zooecia on each face. Zooecia 

 quadrangular, diamond shaped ; angles occasionally rounded ; 

 margins raised ; surface minutely granular, much depressed. 

 Thyrostome arched above, slightly incurved below ; a small 

 denticle at each side of lower lip. Avicularia situated at the 

 distal end of zooecia ; opening semicircular. 



Locality. — Cape Otway (J. Dennant). 



This is a very large species. I have two specimens, both 

 imperfect at the ends, that from which the figure of the zooecia 

 is drawn is half-an-inch long and one-eighth wide, both ends 

 being broken ; the other one is a quarter-of-an-inch long and 

 three-sixteenths wide. There is a row of zooecia on the edge of 

 the zoarium, in which respect it differs from the other flat 

 species {C. angnsiiloba, C. acutimarginata and C. biseriatd). The 

 specimens are not very well preserved, only one of the zooecia 

 showed the denticles inside the lower margin of the thyrostome 

 (Fig. \d). 



Cellaria contigua, McG., var. copioensis, nov. (PI. XXIIL, 



Fig. 2). 



Zoarium cylindrical. Zooecia elongated, hexagonal, upper 

 and lower extremities broad ; arranged quincuncially, surface 

 depressed ; margins very narrow and thin. Thyrostome lofty, 

 with a thin raised margin ; lower lip incurved, with an internal 

 denticle on each side. Avicularia vicarious, of the same size as 



