Cope. | 190 [ Novy. 2, 
in cross-section. The face in front of the orbit is concave below the can- 
thus rostralis. The nostrils are not large, and are sub-round. They are 
widely separated, being nearer the maxillary border at its junction with 
that of the premaxillary, than to the median line. The mandible is shal- 
low, and not very stout. Its inferior border rises from below a point a 
little in front of the fundus of the epiotic sinus to the angle, which is at 
the quadrate articulation. Symphysis short. 
The sculpture of the anterior portions of the muzzle is coarsely punctate ; 
on the posterior portions of the upper and lower jaws it is ridged and pit- 
ted. Most of the upper surface of the skull is still covered with a thin 
layer of the matrix, so that the sculpture and the character of the lyra, if 
any there be, remains unknown. 
The teeth, as has been observed, are not visibly grooved, but the charac- 
teristic feature of the group may be represented by numerous delicate 
crack-like lines which one sees on the basal portions. These, however, 
look like the result of weathering. The sections of all the teeth would be 
round, but for the cutting edges, which are not very prominent. In addi- 
tion, the premaxillary teeth are coarsely fluted on the median half of their 
length. The fluting is not visible on an antero-lateral mandibular tooth, 
nor on a posterior maxillary tooth. The microscopic structure of the teeth 
is not yet investigated. 
The bodies of the vertebre have concave sides, and a sub-round section. 
Their neural spines terminate in an obtuse enlargement. Many of the 
characters of the vertebral column are yet concealed in the matrix. The 
distal portions of the ribs are straight, cylindric, and become stouter at the 
extremity. 
Measurements, M. 
Length of cranium from the extremity of the os quad- 
TAUGUIIM suis tavevere canteen eve late fans etevere icvetorn trensters atoeetsl were baoton east 
enethvofcraniumon middle limes seeecnca cee se -isielerel- .000 
Length from end of muzzle to nostril.............. so UNG 
Width of cranium between quadrates..............-2- .306 
re at sg EDIOLICS trata tues evetseatione .118 
op iS si OTS ateterm etre tierce te eter .086 
4g aS AUOLOMS ye yecreretetereleiieietoetine seks euereret= 294 
x IDE GWEETINATES peretepeteteeitertteletefelel- (els 085 
Ditmeter of! aRuits | AUNLETO-POStEDLOMe ae eieeis slain sie)elelers .048 
transverse. ..... sqooo0gd so xowOaC 057 
Henethyon premeaxallanyatOotheaeperertacierelatr!s)srsiele-\elelsis 025 
Diameter es SSO hes actateredetavelet sieloeisiersieteioke so. UDG 
Length of posterior maxillary tooth.................. .010 
Diameter of median cf UG), SiS Scere anges daooC 007 
Leaethvora, dorsal (centrums wees sels cs see 024 
Vierirealidianveter of Os i ssysecie sisi-1 erates ove(s evel okehetie .025 
Elevation of neural spineof doy... <5: +> <1 .. .050 
Length’or ribvon-curve’ .. 02.0 .!o dave oe elalaters ss spmreel te ee OOO 
