NEW AUSTRALIAN ECHINOID 19 
REMARKS 
Brochopleurus australiae may be distinguished immediately 
from other species of the genus by the transverse sculpturing of 
the ambulacral mid-zone, which is absent in the Egyptian and 
Indian species. On the other hand, it is very closely related to the 
forms from the New Zealand Oligocene already mentioned, which 
share this feature. 
A second specimen, No. 4688 of the National Museum of Vic- 
toria, from the same locality, is evidently referable to this species. 
Its dimensions are: height 4-5 mm., horizontal diameter 9-5 mm., 
peristome diameter, 3-3 mm. 
REFERENCES 
Fourtau, R., 1920. Cat. Invert. foss. de l'Egypte, 2, 25. 
Laube, G. C., 1869. Ueber einige fossile Echiniden von den Murray Cliffs in 
Sud-Australien. Sitzb. Kais. Akad. Wiss. Wien, 59, 183. 
Mortensen, Th., 1943. A Monograph of the Echinoidea, 3 (2), 354. 
