1992. Geology and Paleontology. 1031 
occurring in Western Texas and extending into Mexico. They overlie 
the Fayette sands and consist of gravel cemented by a very porous 
tufaceous limestone. In some places only the limestone is present. 
It contains such fossils as Bulimus alternatus Say, and seems to be in 
` part the equivalent of the Equus beds of southwestern Texas described 
by Leidy and Cope.—Bull. Geol. Soc. Am., Vol. iii, pp. 219-230.—— 
Part 4 of Contributions to Canadian Micro-Paleontology has been 
‘published by the Canadian Geological Survey. It consists of descrip- 
tions and illustrations of thirteen new and three previously known 
species of Radiolaria from the upper cretaceous rocks of northwestern 
Manitoba. The report was prepared by Dr. D. Riist, of Hanover, 
Germany, who has made a life study of fossil Radiolaria. 
Cenozoic.—A fine series of mandibles of Phascolomys mitchelli in 
the Queensland collection supports the view of Mr. DeVis that P. 
‘mitchelli and P. platyrhinus are distinct species. The same writer also 
affirms that Sceparnodon is not a synonym of Phascolonus, basing his 
assertion upon a study of the upper and lower incisors of Sceparnodon. 
—Proceeds. Linn. Soc. N. S. W., Vol. vi——Mr. Lydekker has 
recently described and figured a Sirenian Jaw from the Oligocene of 
Italy. Some peculiarities of dentition appear to him to point clearly 
to an Artiodactyle ungulate ancestor with short crowned and selenodont 
it likely that any such will ever be found.—Proceeds. London Zool. 
Soc., 1892.——The discovery in Queensland of a second species of 
Owenia establishes the validity of that genus. Mr. C. W. DeVis pro- 
poses, since the name Owenia is preoccupied, to substitute for it the 
name Euowenia.—Proceeds. Linn. Soc., N. 8. W., Vol. vi. 
ing to Lydekker Viverra hastingsie, described by Mr. Wm. Davies, 
from the upper eocene of Hordwell, is specifically inseparable from 
V. angustidens.—Quar. Jour. Geol. Soc., Aug., 1892. 
