140 A MONOGRAPH OF TUE TEllTIARY POLYZOA OF VICTORIA. 



D'Oi-b., P.E.T.C, 710; Spiropom. verticlllala, Novak. Dcutschcr K.K., Akad. 

 Wien, XXXVII., 31; Entalophora verticillata. Waters, Q.J.G.S., XL., G85. 



Zoarium brancliod, branches cylindrical. Zocx'cial apertures arranged in -whorls 

 of a single series, (he nuuiher in a whorl varying ■with the age and thickness of the 

 branch. Proximal part oi" zoa^ciuni approximately parallel to the long axis of the 

 l)ranch, distal part turned outwards at right angles to it, free and produced. 

 Zoa'cial margins marked on the internodes by a faint raised line ; surface minutely 

 but very distinctly punctate. Free portion of zoccckim corrugated transversely to 

 its length. 



M.C ; M. J5elmoiit. A very common form. Jurassic to late Tertiaiy, 

 Europe. 



3. E. lunijlpora, McG. PI. XX., figs. 11, 15. 



Zoai'ium branched. Zocecia irregularly disposed, ojiening on all sides, very 

 long, parallel, alnuxst straight, lateral boundary marked by a raised liiu-. Oiitei' 

 wall ilat in the proximal part; near the distal end, where tlu; zocecium begins to 

 turn outAvards, convex. Sux'face covered with niunerons microscopic poi'cs. 



M.C. 



TJie great length of the zocecial tubes is a Avell-marked character, they being 

 generally from twelve to fifteen times as htng as Avide. The iigin-e makes tiu; 

 proximal part of the zoocia convex instead of flattened, with a raised bounding 

 ridge. 



1. E. punctata, McG. PL XXL, fig. 2. 



Zooecia short, about six or eiglit times as long as wide. External wall luniid, 

 bounded by a rounded ridge. Apertures arranged in an irrt-gular quincuncial 

 manner. Siulacc pierced by numerous large pores arranged in oblique lines. 



8. P. 



The single specimen is somewhat worn, so that the length of the free portion 

 of the zocx'cium is not known. 



5. E. midtipom, McG. PL XXL, lig. 1. 



Zoariiun branched, branches compressed. Zotecia in two oblique sijirals. 

 Zofficial tubes short, about four or live times as long as wide. Surface smooth, with 

 numerous large pores. 



M.C. 



The only specimen is much eroded so that the peristome does not project above 

 the general surface. 



