
738 The American Naturalist. [August, 
jncluded under a single term,—at least not under the term Huronian, 
which at first had a correct and adequate definition, embracing but one 
of them. 
This report gives an idea of the progress that is being made in the 
intricate geology of the northeastern part of the state, and of the 
economic resources that are being developed there. 
Geological News—Archean.—Mr. Arthur Harvey thinks that 
the nodules found in the Animikie slates in the region of Thunder 
Bay are fossil organisms simpler in structure than sponges. In appear- 
ance they resembled the puff-balls of our meadows, varying in size 
from a hen’s egg to a coal-scuttle. (Transactions Canadian Inst., 
March, 1891.) 
Paleozoic.—A. Smith Woodward reports two new Devonian fishes, 
—Onychodus arcticus, from Spitzbergen (Ann. and Mag. Nat. Hist., 
August, 1889), and Chmatius latispinosus, from New Brunswick (Geol. 
Mag., November, 1889). Mr. R. B. Newton has described and fig- 
ured a new mollusc (Porcellia latidorsata) from the Carboniferous lime- 
stone of Ireland (Geol. Mag., 1891). Mr. Newton proposes to change 
the name of Porcellia Lev. to Leveillia, because it resembles the Por- 
cellio of Latreille; an entirely inadmissable proposition. E. N. 
Ringueberg has described and figured five new crinoids from the Lower 
Niagara limestone at Lockport, N. Y. Callicrinus acanthinus, Gly- 
plaster (Eucrinus) lockportensis, Ichthyocrinus conoidens, Eucalyptocrinus 
muralis. (Annals N. Y. Acad. Sci., July, 1890.) 


Mesozoic.—According to A. Smith Woodward, the so-called Cre- 
aceous lizard, Raphiosaurus, is founded upon the anterior half of the 
dentary bone of a characteristic Cretaceous fish, Pachyrhizodus. (Aza. 
and Mag. Nat. Hist, November, 1889.) Mr. David White has 
found Cretacic plants at several points about Gay’s Head at Martha’s 
ineyard. They seem to be nearly related to those of the Middle 
Cretacic of Greenland, and there is reason to believe them identical 
with the flora of the Amboy clays, (Bull. Geol. Soc. Am., Vol. L., p. 
554-)——Mr. R. T. Hill divides the Comanche series of Texas into 
several separate and distinct terranes, the lower two of which may pos- 
sibly be of the pre-Cretaceous age. He gives both stratigraphic and 
Se ae proof that such a division is neccessary. (Bull. Geol. 
m., Vol. II. pp. 503-528.) A new genus of Paleoniscid 
pas from the Karoo formation of South Africa has been described 
by A. Smith Woodward under the name of Atherstonia scutata. In 
appearance of the scales, the situation and proportions of the fins, this 





