Peraspatangus brevis Philip & Foster 1971; Oral view,
from Philip, G. M & Foster, R. J. 1971. Marsupiate Tertiary
Echinoids from south-eastern Australia and their zoogeographic
significance. Palaeontology 14, 666-695 pls 124-134.
(plate 133, fig. 8).
Length of test 16 mm.