CAHN — FOSSIL EDENTATE 
23 
band, all from Florida. A specimen from Texas, therefore, is of great 
interest, and extends the known range of this rare edentate considerably 
both to the north and west. 
On March 6, 1921, the writer and two students visited the Brazos 
River at Pitts Bridge, about eight miles south and west of Bryan, 
Brazos County, Texas. At a point about a quarter of a mile below the 
bridge, on the Brazos County side of the river, one of the students, 
Mr. W. A. Rounds, found a right lower jaw of Chlamytherium, probably 
septentrionaiis. For this identification the writer is indebted to Dr. 
W. D. Matthew and Dr. 0. P. Hay. At the same time, but at a dis- 
tance of over a quarter of a mile from the jaw, a single dermal scute 
was found, which may or may not belong to the same individual. A 
couple of months previous another scute, together with a piece of rib, 
had been found by Dr. Mark Francis, in the same place as was the 
scute found by the writer. This rib and scute were identified by Doc- 
tor Hay as belonging to C. septentrionaiis several weeks before the 
discovery of the jaw. 
The jaw has been very kindly donated by Mr. Rounds to the museum 
of the Texas Agricultural and Mechanical College, where it and the 
other specimens have been permanently placed. 
It is somewhat uncertain from which formation this Texas jaw came. 
The Brazos River in this vicinity has cut a wide Eocene valley, which 
is largely filled with Quaternary and Pleistocene deposits, and these 
form abrupt, cliff-like banks to the stream. The jaw was found in a 
partially buried condition in a pile of sand which had recently slid off 
the face of the nearly perpendicular wall of the river bed, and was 
lodged at the top of the talus slope. It is evident that the dislodg- 
ment was recent, since a broken piece of the horizontal ramus was found 
close by in the sand. The deposit was presumably Pleistocene, but 
this can not at present be definitely stated. In addition to Chlamy- 
therium, the following forms have been found in the vicinity of Pitts 
Bridge: Egwws complicatus, Elephas columbi, Elephas imperator, Mastodon 
americanum, Gomphotherium gratum, Camelops huerfanensis, Bison sp?, 
Megatherium sp?, Testudo crassiscutata, etc. 
The jaw under discussion, in spite of the fact that it has but two teeth 
in place, is in a considerably better state of preservation than the Florida 
specimen. Eight dental fossae are complete; half of the ninth (the 
first incisor) fills the entire dental quota of one-half of the lower jaw. 
The ninth (molariform) tooth is present as a broken fragment, as in 
the Florida jaw; the seventh tooth is firmly in position and is complete. 
