1872. J 545 [Cope. 
than the rest. The posterior teeth have short, very obtuse erowns 
with elliptic fore and aft outline. They resemble some forms seen 
in Pycnodont fishes, and are closely striate to a line on the apex. 
The upper surface of the cranium is pitted, the frontal and parietal bones, 
with large, deep, and closely plaeed concavities. The former is per- 
fectly plane, and the latter is wide. The squamosal arch is also wide, 
and the crotaphite foramina are large and open. The dermalscuta are 
very large for the size of the animal, and were net united by suture. 
They are keelless, and deeply pitted, with smooth margins. 
The vertebral centra found with other specimens are round. The 
codéssified neural arches indicate the adult age of the animal. 
MEASUREMENTS. 
M. 
Height crown premaxillary tooth.......-.,..++-+eeeee eee 004 
Width oh ie Bt Pase sot or rset wre ee ce as 0035) 
Long diameter erown of a maxillary..-.....--0. see ee eee 005 
Short * oe Cae ee eee ei each ob ts oes 0035 
Width Paricbals. 50. ce sie cae ee eee tie teeter css 009 
Wadulitroubal<ts.. 645.0006 { depen an ae ae pe 
Width molar beloweye-.- 2... ere eee eee uaa et 008 
The variation in the form of the teeth is a slight exaggeration of that 
seen in the dentition of various species of crocodilians. 
Stated Meeting, Oct. 4th, 1872. 
Present, 29 members. 
Viee-President, Mr. Frauny, in the chair. 
A letter, aceepting membership, was received from the 
Rey. S. H. Niehols, dated 415 South Fifteenth Street, Phil- 
adelphia, September 26th, 1872. 
An engraved portrait of William Smith, D.D., first Pro- 
vost of the College of Philadelphia, was presented by Mr. 
Horace W. Smith. 
A circular letter, announeing the death of Signor Felice 
Finzi, dated Firenze, 4th September, 1872, was received from 
his relatives. 
A letter of envoy and acknowledgment (Proc. 81 to 85) 
was received from the Geological Society of St. Petersburg. 
Donations for the library were received from the Revue 
Politique; the Meteorological Committee of the London R. 
A. P. S.—VOL. XIT.—8Q 
