330 THE AMERICAN NATURALIST. [ VOL. XXXV. 
Triassic Fossils from Eastern Siberia.' — In this publication, Dr. 
A. Bittner has described the fragments of a pelecypod and beachiopod 
fauna from the Lower Trias of the Ussuri region, near Vladivostock, 
in eastern Siberia. Although the fauna is not rich, it is especially 
interesting, coming from the same formation from which Dr. C. 
Diener ° has already described the characteristic cephalopod fauna. 
While most of the species are new, it is surprising to find among 
them forms either identical or closely related to European forms, 
among which may be mentioned Pecten conf. alberti Goldfuss, Pseudo- 
monotis multiformis Bittner, and Myophoria conf. levigata Alberti, 
of which representative forms, or geographic variations, are found 
in the Werfen beds of the Tyrol. 
Diener, on the other hand, found the cephalopod fauna of the 
Ussuri region absolutely different from that of the Tyrol, with its 
nearest relationships rather with the Triassic faunas of northern 
Siberia and India. It is, therefore, remarkable that a kinship with 
the European Trias should show itself in the pelecypod fauna, which 
also shows decided affinities with some forms in the Lower Triassic 
Meekoceras beds of southeastern Idaho, near Soda Springs. The 
cephalopod fauna of the Ussuri region is almost identical with that 
collected, but not yet described, by Professor A. Hyatt and the 
writer from Wood’s Cafion near Soda Springs. These additional 
species will aid greatly in the correlation of the Idaho beds with 
those of the Ussuri region, and incidentally with the Mediterranean 
Trias. TPS 
The Upper Paleozoic Fauna of Russia.?— In this paper N. Jakolew 
has added another link to the chain that connects the Upper Car- 
boniferous faunas of Russia with those of America. Up to the pres 
ent our knowledge of the gastropods of the Permo-Carboniferous, 
or Artinsk, beds of Russia has been scanty, but in this work we find 
à number of American species in the beds that lie above the Uralian 
and below the true Permian beds, analogous to the uppermost 
Missourian and possibly the lower part of the Wichita formation of 
the Mississippi valley region. The analogies between these transi- 
tional formations on the two continents have long been recognized, 
A. Versteinerungen aus den Trias-Ablagerungen des Süd-Ussuri- 
der ostsibirischen Küstenprovinz, Mém. Comité Géol. Russie, vol. Vb 
2 Mém. Comité Géol. Russie, vol. xiv, No. 3, 1895. 
N. Die Fauna einiger oberpalaeozoischer Ablagerungen Russlands. 
alopoden und Gastropoden, Mém. Comité Géol. Russie, vol. xv, No. s 
! Bittner, 
Gebietes in 
No. 4, 1899. 
3 Jakolew, 
I, Die Ceph 
1899. 
