111. A MONOGRAPH OF THE TERTIARY POLYZOA OP VICTORIA. 



7. /'. tossoJlala, var. honomnuila, lliiicks. PI. XV., fig. 11. 



7?. fesf^rllah,, llincks, A.M.N.H., May, 1S78; McG., P.Z.V., 99. 



I liavc a small, not very -wcll-proscrved ffai^'inent of a spccimon which ought 

 prohahly to ho vcforred to this sp(>cies. The zooecia arc irregularly shaped, hroad 

 and rounded ahovc, contractcnl below, with narrow raised margins; tlie thyrostomc 

 ai'clied al)ove, straight below, with a small elliptical avicularium placed transversely 

 on a slight elevation on the lower li]) ; the marginal zooecia with several spines ; a 

 large immei'sed avicularium, with long triangular mandible, placed transversely 

 across the zocccium a little above the middle, and a few other minute avicularia 

 irregulai-ly situated. Dorsal surface mapped into distinct areas, separated by narrow 

 sharp vibices and each containing one or more large avicularia similar to those on 

 the front of the zooecia. 



The specimen does not shew the thyrostomc vci'y clearly, but, so far as can be 

 made out, the uj^iier angles of the zooecia at the sides are not produced and elevated 

 as in the recent form, in which also there is no oral avicularium. 



S.P. 



8. R. permnnito , n.s}). Pi. XV., iigs. 17, IS. 



Zoariuin fenestrate; fenestnie small, elliptical, about the same width as the 

 trabeculie. Zooecia elongated, separated by narrow raised lines ; thyrostomc in 

 central zooecia \\\t\\ a distinct roimd sinus in the lower lip, in the lateral zooecia the 

 peristome produced, especially to one side, and lacerated or serrated for spines ; a 

 few scattered avicularia on the front of the zocecia on large mound-like elevations. 

 Ocecia rounded, convex, smooth, entire and subimmersed. Dorsal surface smooth, 

 divided into angular spaces by Avell-defined vibices ; numerous rounded or elliptical 

 avicularia in the spaces ; and on the margins of the fenestrfc a series of large 

 avicularia, the fenestral extremity of which is raised and the mandible directed 

 away from the fenestra?. 



M.C. 



Readily distinguished by the peculiar arrangement of the dorsal avicularia. 



9. J?, monilifera, McG. 



B. moniUfem, McG., T.R.S.V., 1859 and 1883; P.Z.V., 9G, 97. 



Zoarium fenestrate ; fenestrjp OA^al, small, narrower than ilie trnbecuhm ; 

 zooecia separated by narrow raiscnl lines ; thyrcstome with a sinus in Hie lower b'p 

 and a small avicularium (not well .shewn in <lie fossils) on one side. 



S.P. ; M.C. A common recent Australian species. 



