Efe eee eee ee 
1878. | Geology and Paleontology. 829 
5. The skeleton of Canis protalopex (Lund 
6. Bones of many individuals of Lagostomus angustidens Bur- 
meister. 
. Some bones of an undetermined species of horse. 
8. Teeth and bones of Cervus pampeus Bravard. 
and 10. Bones of many rodents of the genera Reithrodon 
= Hesporomys 
. A species of Dolichotis. 
a Bones of a carnivore, which Prof. Gervais thinks appertain 
to a young Machairodus. 
13. An ostrich [? Rhea] and many other bones belonging to 
undetermined species. 
THE THEROMORPHOUS REPTILIA.—A paper on this subject was 
read by Prof. Cope before the National Academy of Sciences 
at its recent meeting in New York, on November 7, 1878. e 
stated that he had determined that the scapular arch in the Pely- 
cosauria' consists of scapula, coracoid and epicoracoid, which 
form a continuum in the adult, in the same way as the three ele- 
ments of the pelvis in the same group form an os innominatum. 
He showed that the tibiale and centrale of the tarsus unite to 
form an astragalus, which has no movement on the tibia. The 
fibulare forms a calcaneum. The distal side of the astragalus 
presents two faces, one of which receives a large part of the 
proximal extremity of the cuboid. 
The structure of the scapular and pelvic arches was stated to 
be identical with that pr A described by Owen as belonging to 
the Anxomodontia. Severa ortant characters distinguish this 
group from the Pike. at the two together form an order 
which Prof. Cope thought would have, for the present at least, to 
be retained as distinct from the Rhynchocephatia, The characters 
of this order, with its two sub-orders were given as follow 
THEROMORPHA Cope. Scapular arch consisting at least of scap- 
ula, coracoid and epicoracoid, which are closely united., Pelvic 
en 
Limbs with the phalanges as in the ambulatory types. yen 
~The Rhynchocephalia. have no distal ischio-pubic symphysis, 
and apparently no epicoracoid-bone. They have an obturator 
h 
The order 7heromorpha was regarded by Prof. Cope as approx- 
imating the Mammalia more closely than any other division of 
1 See Proceed. Amer. Philos. Soc., 1878, p. 511 and 528. 
. 
