REPTILIA. 
109 
Aspilus ? pnnctulatus, Gray, Proc. Zool. Soc. 1864, p. 84, from Amboyna or 
Ceram. Potamochelys (?) microcephalits, Gray, 1. c. p. 87, from Sarawak. 
SAUMA. 
Mr. E. D. Cope has taken up the study of the osteology of 
Reptiles with the intention of establishing a better base for a 
system of this class of animals. In the ^ Proceedings of the 
Academy of Natural Sciences of Philadelphia,^ 1864, p. 224, he 
gives an abstract from his manuscript, presenting some new 
views in this department. It would he scarcely possible to do 
justice to the contents of this paper without reproducing all the 
characters (chiefly osteological) on which the author bases the 
suborders, tribes, and families ; and therefore we must refer to 
the paper itself. We hope that when the author publishes the 
manuscript, of which the present publication is a mere abstract, 
he will name the species and generic types which he has ex- 
amined, as faith in his generalizations would be much strength- 
ened by his thus showing the extent of his observations. 
The system of Saurians, modified by Mr. Cope, would be the 
following ; — 
First Suborder. Acrodonta. 
Tribe A. Rhiptoglossa, with the family of Chammleonidce. 
Tribe B. Paohyglossa, with the families of Agamidce and Hatteriidcs. 
Second Suborder. Pleurodonta. 
Tribe A. Iguania, with the families of Anolid<ie and Iguanidm. 
Tribe B. Biploglossa, with the families of Anguidccj GerrhonotidcBj and 
Helodermid(e . — The Anguidce are entirely reconstructed ; he divides them into 
four subfamilies : 
a. Ophiomurinm : Popasia, Pseudopm^ Ophiosaurns, and Ophiotes. 
b. Ophiomorincc : Ophiomorm, 
c. AngmncB'. Anguis. 
d. Piploglossmee : Onidaj PanolopuSj Sauresia, Diploglossusj MicrolepiSf 
and Camilia. 
Tribe 0. Thecaglossa, with the family of Varanidm. 
Tribe I). Leptoglossa. 
a. Premaxillary simple, with the families of Teidce^ Lacertidcej Chal- 
cidid( 2 , and Ecpleojnda;. 
0. Premaxillary double, with the families of ScincidtB and Sepsidts. 
Tribe E. Typhlophtiialmi, with the families of Anelytropidce, Acontiidccj 
and Anicllid(B. 
Fam. CROcoDiLiDiE. ^The following species are figured by 
Gunther, Rept. Brit. Ind. : — 
Crocodtlus pahistris (Less.), pi. 8. fig. A ; Crocodiliis siaynemis (Schneid.), 
pi. 8. fig. B ; Crocodilus pondicerianm (Gray), pi. 7. 
Fam. Varanidae. The heads of the following species are 
figured by Gunther, Rept. Brit. Ind. : — 
