1893.) Geology and Paleontology. 39 
decagonale and Cassidulus florescens, have been added by Mr. Gregory 
to the Australian fossil Echinoidea. The papers recently published 
by Cotteau, Tate, Bittner, and Gregory on Australian Cenozoic Ech- 
inoids, show that the fauna in question is Eocene and Oligocene instead 
of Miocene, and that it is remarkably rich and varied in genera — 
Geol. Mag., Oct., 1892.——A collection of mammalian bones from 
Mongolia reported on by Lydekker are of interest since they carry the 
Chinese mammalian fauna to a more northern district than has hith- 
erto been known, and they indicate two Indian Siwalik species not 
previously recorded from Chinese territory, viz., Hyena macrostoma 
and Equus sivalensis.— Records Geol. Surv. India, Vol. xxiv. 
