Virlorian Fossils, Port IX. 217 



'J'he present recoid is made tVoin a higher horizon than that of the 

 Sherbrook River. Further specimens from the same locality- 

 may show a varietal difference, but so far as can be seen ours 

 agrees in all essential characters, and only differs in size. 



Locality and Horizon. — ^Beaumaris, Port Phillip. Tertiary 

 (Kalimnan). [482!>]. 



Genus — ENpa/cigi/s, Agassiz. 

 Eupatagus potundus, Duncan. 



Eupatagus rotundus, Duncaai, 1877, Quart. Journ. Geol. Soc, 

 Vol. XXXIII., p. 53, PI. III., Figs. 14-17. 



Observations. — This species i* not very abundant in our Ter- 

 tiary beds. It is readily recognised by its exceptionally large 

 size compared with the other Australian examples of the genus, 

 the almost circular ambitus, the gi'eater proportional height of 

 the vertex, which is | the length of the test, the nearly centric 

 position of the apical system, and the sharply angulated peri- 

 petalous fasciole. 



A fine i^peeiraen of this ecliinoid has been presented by Mr. 

 F. P. Spry to the Museum collection [915GJ. The test is part- 

 ly encrusted by a hard pink or reddish brown limestone, and 

 the fossil itself is of a brick-red colour. Tliis specimen wa..s 

 said to be from Muddy Creek, but the exact locality was 

 open to doubt. During a recent vii«it to the Hamilton District 

 I was able to locate the bed of limestone from whence the 

 present example was obtained. It is best developed at the junc- 

 tion of the Muddy Creek with the Grange Burn, and this par- 

 ticular fossil must have come from near the junction or below, on 

 on the Grange Burn, since it is there that the reddish - coloured 

 limestone occurs. The latter occurs as a very thick bed of 

 foraminiferal and polyzoal rock (Amphistegina and Cellepora 

 being the predominant genera), and throughout the bed are scat- 

 tered numerous tests of echinoids, chiefly of Eupatagus rotundus, 

 I also finmd a portion of a very large echinoid, probably refer- 

 able to Linthia gigas, McCoy sp. Tliis bed of foraminiferal and 

 pnlyzoal limestone occupies a position immediately over the 

 richly fos«liferous clays best seen elsewhere at Clifton Bank ; 



