146 A MONOGUAPn OF THE TERTIARY POLYZOA OF VICTORIA. 



"Zonrimn liraiiclicd, tlio main lu'niiclics mostly horizontal, with mimerous 

 sliort branchos (iinicd ii]nvavds, the socomlai-y l)ranclies consisting of ])imdles of 

 zotccia. all opening by closely-packed pvisniatic orifices ; surface punctate, faintly 

 sxilcatc longitudinally and (esjH'cially in old(M' i)arls and on th(>. back) transversely 

 corrugated."— (I\lcC;.). 



B. 



2. F. (i;,slicha, McG. PI. XX IT., fig. ".. 



Zooecial tubes ])rismatic, arranged in lobaie folds and along the summits of 

 which they open. J^'olds very variable in size and sha])e and ind(>finitely arranged. 

 Apertures rouiuhuUy i)olyhedral or ol)long. Outer walls smooth. Zoojcial tul)es 

 connate, but with the line of junction clearly marked by a groove. Apertures at 

 times closed by a concave calcareous plate. 



B. 



Which is the attached part is not clear from the luiture of the s])eeim('n, as the 

 zooocia look in all directions, the lobes being equally developed all round the 

 zoarium. 



Frondipora, Imprrdfo. 



" Zoarium pedunculate, ramose ; fasciculi opening only on one sid(> of the 

 Imanches in raised ])atches." — (Busk). 



Disctoubigei-a, /> ' O/'/j. 



Zoarium discoid, lixcd l)y its base. Zooeeia in two or three I'ows opening along 

 the summits of biscrial radiating ridges. 



D. gamhierensis, Waters. PI. XXII., fig. 10. 



Tuvotuhifjera gamhierensis. Waters, Q.J.G.S., XL., p. 692. 



" Zoarium apparently adnate. Zoocia in l)undles of two or more, erect connate. 

 Ovicell an inflation of the jiortion of the surface; bctwi'cu the zo(ecia ; surface of 

 zocccia evidently finely punctate." — (W.). 



M. Mt. Oainl)iei' (AV.). 



The figured specimen is a fragment, tlu- l)rok(>n edge being the lower one in 

 the figm'e, while the other edges are entire. The nnder-snrface shows strongly- 

 marked concentric ruga\ the imaginary centi-e round which fliey are developed 

 being placed some distance Ix'low tiic Ijrokeii ('dg(> of the figure. 



