626 The American Naturalist. [July, 
The specimens are all too much injured to permit of complete 
measurements. The largfest measures from the end of the muzzle to 
the base of the caudal fin 260 mm., and 90 mm. in depth at the verti- 
cal fins. The last dorsal spine measures 36 mm. A lateral dorsal 
scale is six mm. in length. 
I propose that this species be called Plioplarchus septemspinosus. 
The general agreement of this species with the two previously known 
species of the genus renders it highly improbable that they are widely 
removed from each other in geological age. Prof. Lesquereux has 
placed the shales at Van Horn's ranch in the upper Miocene, from the 
evidence of the numerous plant remains which occur there. As the 
shales are, according to Condon, below the John Day beds of the 
middle Miocene, they cannot be upper Miocene of the vertebrate 
scale. Plioplarchus has not been found in the Amyzon beds, and the 
plants of that horizon are, according to Lesquereux, different from 
those from Van Horn's ranch. The shale may then represent a hori- 
zon later than the Amyzon beds, but earlier than those of the John 
Day. In spite of the evidence of the plants, they may be even older 
than the Amyzon beds, since the bed of the Dakota Plioplarchus 
whitei is not distinguishable stratigraphically from the Laramie at its 
summit, according to Dr. White, a statement which I can confirm by 
personal observation. — E. D. Cope. 
On a New Genus of Triassic Dinosauria. — In this journal 
for April, 1887, I described two species of Goniopodous Dinosauria, 
under the names of Ccelurus longicollis and C. bauri, from the Triassic 
formation of New Mexico. I subsequently discovered that they could 
not be referred to the genus Coelurus, and placed them provisionally 
(Proceeds. Amer. Philos. Society, 1887, p. 221) in the Tanystrophseus 
of Von Meyer. I have recently learned that the reputed vertebrae of 
the latter genus possesses no complete neural canal, so that the position 
in the skeleton of these elements, on which the genus was founded, 
becomes problematical. It becomes evident that the Triassic species 
in question must be referred to a genus distinct from any hitherto 
known, differing from Coelurus in the biconcave cervical vertebrae, and 
from Megadactylus in the simple femoral condyles, as well as in other 
points. I propose that it be called Coeloi)hysis, and the three species, 
C. longicollis, C. bauri, and C. willistoni respectively. — E. D. Cope. 
The Ophitic Band of Andalucia M. Salvador Calderon 
contributes a study of the epigenic region of Andalucia and of the 
origin of its ophites to a recent issue of the Bulletin of the Geological 
