NATURAL HISTORY MISCELLANY. 793 
ments of a monster saurian projecting from the shale, and on fol- 
lowing the bones into the hill, exhumed a large part of the skel- 
eton of a Liodon dyspelor Cope. This was welcome, as the 
species had been previously known from vertebrae only. The 
pelvic arch was found perfectly preserved, and the scapular arch 
and limbs partially so. The iliac bone is slender and straight, 
slightly expanded at the acetabulum. The ischium has a some 
what similar form, but is curved. The axis of the proximal por- 
tion is directed upwards, the shaft then turns into a horizontal 
direction and lies beneath and at one side of the vertebral column 
without uniting with its fellow. The pubes are elongate, but 
wider than the other elements and flattened. They are in contact 
in front medially, and have an angulate axis. A short process 
projects from near the proximal end, on the exterior margin. 
The femur is a flat bone slightly constricted medially, and with 
a decurved and projecting portion of the proximal articular sur- 
face on the inner side representing a head. The extremities of 
the dentary bones are each drawn to an acute point differing thus 
toto celo from those of the L. proriger. 
= On the same bluff another Liodon and a Clidastes were found 
with five species of fishes. 
On examining the neighboring bluff and denuded areas, bones 
supposed to be those of Pterodactyle, two species of Clidastes, a 
Dinosaur, a Crocodile, and numerous fishes were brought to light. 
In a similar location on Fox creek cañon, one of the escort, 
Martin V. Hartwell, to whom I am indebted for many fine discov- 
eries, observed the almost entire skeleton of a large fish, furnished 
with an uncommonly powerful offensive dentition. The jaws 
were stout, the dentary bone very deep. The teeth in a single 
row in all the bones, but of irregular sizes. There are two or 
three very large canines in each maxillary and one in the premax- 
illary; three or four in the dentary separated by one interval. 
The lack of the coronoid bone and many other characters, shows 
that it should be referred to the order Isospondyli, and is probably 
allied to the herring and the Saurodontide. The vertebre are 
grooved, and there is a pasioccipital tube but little developed. 
The teeth are simple cylindric conic, with smooth enamel, and 
project two inches above the alveolar border, and each descends 
an inch into its alveolus. The species and genus are new to our 
palzeontology, and may be named Portheus molossus. It turned 
out on subsequent explanation to have been quite abundant in the 
