4 Proceedings of the Royal Society of Victoria. 



instituted the genus Caloporella. I quote this because I think 

 that probably the whole of this group, when living, had bosses, 

 or elevations on the front, and not, as shown in the fossils, 

 perforations only ; and also as a warrant for making a new 

 genus to include the species of this group, which is a well-defined 

 one. 



In this connection I would wish to state that the recent 

 species of Catenicellidce which I, when at Portland, found and 

 examined alive showed that the fenestrse were, in most cases, 

 elevations not depressions or cavities, the ectocyst where covering 

 the fenestrje being distended and raised. I have noted in my 

 diary the following species in which the fenestrse showed as 

 elevations, C. lorica, C. niargareiacea, C. a lata, C. carinata, 

 C. perforata and C. hastata. 



Strongylopora, nov. gen. 



Zooecia ovoid, a submarginai row of round or oval pores, 

 segregated, not aggregated. 



The following are the species which I assign to this genus : — 

 Strongylopora pulchella (Map.) 



Catenicella pulchella. Map. J. M.S. Vic, May, 1880. 



C. concinna, McG. T.R.S.V., Nov., 1880. 



0. pulchella, McG. P.Z.V., 1889. 



C. pulchella, McG. Monograph p. 11. 



C. pulchella, McG. Busk, "Challenger," xxx., p. 13. 

 Strongylopora circumcincta (Waters, sp). 



Cat. circumcincta, Waters. Q.J.G.S., 1883, p. 432. 



Cat. circumcincta, McG. Monograph, p. 9. 

 Strongylopoi-a expansa (McG. sp.) 



Cat. expansa, McG. Monograph, p. 10. 

 Strongylopora mamillata (McG. sp.) 



Cat. mamillata, McG. Monograph, p. 10. 

 Strongylopora tenuis (McG., sp.) 



Cat. tenuis, McG. Monograpli, p. 10. 



Strongylopora complanata, n. sp. (PI. I., Fig. 6.) 



Zou'cium broad, ovate, flat, with very wide, smooth, lateral 

 processes, extending upwards as broad, flat, rostra ; avicularium 



