796. . The American Naturalist. [September, 
“Of the group of primitive ruminants, there are only some molar 
teeth which seem to be identical with Dichodon cartierii Egerkingen. 
“But the most interesting discovery among the Ungulates is a single 
upper molar, differing only by its smaller size from that of the animal 
of Egerkingen, referred by Rütimeyer to the American genus Phena- 
codus, under the name P. ewropeus. 
“The Carnivora are represented by several types, among others a 
Pterodon, a primitive Viverra, with the heel of the sectorial tooth very 
short, as in V. angustidens. 
“ Finally, of the group of rodents, there is a fine demi-mandible of a 
Sciuroides, related to Sc. siderolithicus of Egerkingen. 
“ Among the undetermined species are some bones of Birds and 
Reptiles.” 
Geological News, Paleozoic.—According to Mr. C. Schuchert, 
a collection of fossils, comprising about thirty species, most of which 
are corals, demonstrate the undoubted presence of middle Devonian 
deposits in northern California. All the fossils studied are from lime- 
stone, nothing as yet being known from a sandstone or shale fauna. 
The localities in which these collections were obtained have been 
examined by Mr. J. S. Diller. They are in Shasta and Siskiyou coun- 
ties, California, and as the general strike of Devonian rocks near Ken- 
nett is in a line with outcrops of Hazel Creek and Soda Creek, over 
thirty miles away, it is thought that these rocks may be continuous. 
This would be an additional evidence for Mr. Diller's theory previously 
stated “that the axis of folding joins the Klamath Mountains to the 
Coast Range rather than to the Sierra.” (Am. Journ. Sci., June, 
1894.) 
Dr. Ludwig von Ammon has published a memoir on the Stegocephali 
of the Rhein-pfalz known to him. These include nine species which 
are referred to the following genera: Branchiosaurus, 2; Apateon, 1 ; 
Anthracosaurus, 1 sp.; Archegosaurus, 2 sp.; Sclerocephalus, 2 sp. ; 
Macromerium, n. g. von Ammon, 1 sp. The most abundant remains 
belong to Sclerocephalus, which includes also the the largest species. 
Macromerium gumbelii von Amm. was also a large species. The mem- 
oir (published at Munich) is in 4to, and is handsomely illustrated. 
Dr. Hermann Credner published in the XXth Volume of the Ab- 
handlungen of the Royal Saxon Society of Science a beautifully illus- 
trated memoir on the histology of the teeth of the Paleozoic Stego- 
cephali with plicate dentition. The investigation is confined to the 
