A MONOGRAPH OP THE TERTIARY POLYZOA OP VICTORIA. 139 



" Zoarium adnate, with a distinct lamina, partly free at the edges. Cells 

 arranged in distinct, elevated, radiating ridges, very much enlarged and prominent 

 at the extremities ; the narrow parts very prominent, transversely wrinkled, and 

 showing the mouths of a few closed cells, the extremities forming bundles of closely- 

 packed cells, mostly opening terminally. The surface between the ridges punctate 

 and transversely rugose." — (McG.). 



M.C. ; M. Living. Victoria. 



3. L. superposita, McG. PI. XXII., fig. 6. 



Zoarium thick, discoid. Zocecia opening along raised ridges. A single series 

 in each ridge towards the centre, increasing to two or three towards the periphery. 

 Radial furrows between the ridges floored by a finely-punctate, coarsely-transversely 

 rugose, calcareous lamina. 



B. 



Differs from L. lineata in having the transverse lines or wrinkles in the 

 furrows much coarser, and approaching L. fasciculata in this respect. The flooring 

 lamina is broken away for some distance in. one place, and shows that it was 

 produced at successive intervals of growth, as another similar lamina is seen at the 

 base of the large cavity thus displayed. As the specimen is rather worn the 

 projecting part of the basal lamina is not shown. 



Entalophora, Lumx. 



"Zoarium erect, branched; branches cylindrical or clavate, with tubular zocecia 

 opening all round." — (McG.). 



1. E. australis, Busk. PL XX., figs. 10, 11. 



Pustulopora australis, Busk, B.M.C., III., 21 ; id., " Voyage of the Rattle- 

 snake," I., 350 ; Entalophora australis, McG., C.V., 32 



"Zoarium branched dichotomously; branches short, incrassated, truncate; cells 

 almost entirely immersed or about half free ; surface minutely papillose, summits of 

 papillae of a dark brown or black colour. With age the walls become much 

 thickened and porcellanous, with transverse rugae." — (Busk). 



M.C. Living. Australia. 



2. E. verticillata, Goldf. PI. XX., figs. 12, 13. 

 Ceriopora verticillata, Goldt'., Petrefacta Germaniae, I., 36; Splropora antiqua, 



T2 



