140 A MONOGRAPH OF THE TERTIARY POLYROA OF VICTORIA. 



D'Orb., P.E.T.C, 710 ; Spiropora verticillata, Novak. Deutscher K.K., Akad. 

 Wien, XXXVII., 34; Entalophora verticillata, Waters, Q.J.G.S., XL., 685. 



Zoariuni branched, branches cylindrical. Zooecial apertures arranged in whorls 

 of a single series, the number in a whorl varying with the age and thickness of the 

 branch. Proximal part of zooecium approximately parallel to the long axis of the 

 branch, distal part turned outwards at right angles to it, free and produced. 

 Zocecial margins marked on the internodes by a faint raised line; surface minutely 

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

 its length. 



M.C. ; M. Belmont. A very common form. Jurassic to late Tertiary, 

 Europe. 



3. E. longipora, McGL PI. XX., figs. 14, 15. 



Zoarium branched. Zocecia irregularly disposed, opening on all sides, very 

 long, parallel, almost straight, lateral boundary marked by a raised line. Outer 

 wall flat in the proximal part ; near the distal end, where the zooecium begins to 

 turn outwards, convex. Surface covered with numerous microscopic pores. 



M.C. 



The great length of the zooecial tubes is a well-marked character, they being 

 generally from twelve to fifteen times as long as wide. The figure makes the 

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

 ridge. 



4. E. punctata, McG. PI. XXI., fig. 2. 



Zooecia short, about six or eight times as long as Avide. External wall tumid, 

 bounded by a rounded ridge. Apertures arranged in an irregular quincuncial 

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



S.P. 



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

 of the zooecium is not known. 



5. E. multipora, McG. PI. XXL, fig. 1. 



Zoarium branched, branches compressed. Zooecia in two oblique spirals. 

 Zooecial tubes short, about four or five times as long as wide. Surface smooth, Avith 

 numerous large pores. 



M.C. 



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

 the general surface. 



