614 ` The American Naturalist. [July, 
Kansas beds, as well as those of the Texas Permian, whence species of 
these genera have been described by Cope. (Kan. Univ. Quart., Vol. 
VI, 1897.) 
Mesozorc.—For the full classification of the Cycadacee Dr. Lester * 
Ward proposes to use that term to represent the entire family, both 
living and fossil, and to subdivide it into the two subfamilies, the Cyca- 
dex for the living forms and the Cycadeoideæ for the fossil forms. 
Dr. Ward adopts this form of classification in his descriptions of species 
of fossil Cycads from the iron ore belt, Potomac formation of Maryland. 
In this collection seven species are recognized, of which six are new. 
(Proceeds. Biol. Soc., Washington, Vol. XI, 1897.) 
The Museum at Caen, France is in possession of four reptiles from 
the Jurassic deposits of Normandy. These are identified by M. Bigot 
as Steneosaurus roissyi E. Desl., S. intermedius (n. sp.), S. heberti 
Morel de Glasville and Suchodus durobrivensis Lydekker. All the 
specimens are fully described, and the new species figured. (Bull. Soe. 
Geol. de Normandie, t. XVII, 1896.) 
The University of Denver has come into possession of a fossil Mosa- 
saurid found near Flagler, Colo. It is interesting from the fact that 
there has been but one other Mosasaurid found in Colorado and also 
from the fact that it seems to be a new species. 
It was thought, until within a year, that the Mosasaurids did not in- 
habit the ancient seas of Colorado, but existed only further toward the 
east. A few months ago, some bones which were probably from a 
Mosasaurid were found near Canyon city. These and the bones which 
I have, prove that the reptiles lived in the seas of Colorado. 
From all I am able to learn of the reptile, I must conclude that it is 
a new species. It is possibly of the genus Clidastes. The description 
of this genus corresponds fairly well, though there seems room for 
doubt. The absence of characteristic parts makes the identification 
uncertain. 
The vertebral column is about five meters in length and is com- 
posed of ninety vertebre. Some parts of the jaw and limbs are 
also preserved. The authorities at the National Museum, Washington, 
to whom I sent some of the bones, write that I “ probably have one of 
the most complete vertebral columns of this group of marine reptiles 
(Clidastes) in existence. The tail is particularly fine and gives me & 
much better impression of the depth and compression of this part of the 
body.” —W. T. LEE. 
