REPTILIA. 109 
Mexico. The list comprises 31 species, several of which are regarded as 
new. Berlin. Monatsber. 1869, pp. 874-881. 
Upper Amazons. Mr. Cope describes a collection made at Pebas, in 
which he distinguishes about 40 species. Proc. Am. Phil. Soc. 1869 
pp. 147-166. 
Chelonia. 
Dr. Gray has examined the skulls of a considerable number 
of Tortoises and Turtles with the object of finding characters 
which would assist towards a more natural arrangement of these 
animals (Proc. Zool. Soc. 1869, pp. 165-225). He describes in 
his notes the peculiarities of the skulls examined, and indicates 
the modifications of the system formerly proposed by him. This 
study led also to the establishment of several new genera and 
species. In the following abstract all the species examined will 
be mentioned : — 
I. TESTUDINIDA3. 
1. Testudox indica, planiceps, tabiilata, radiata, and Testudo falconerij 
sp. n., p. 169, fig. 1, established from a skull, probably from India, 
and the type of a subgenus, Scapia. 
2. Peltastes : T. elongata (fig. 2), sulcata, graeca, geographica. 
4. Pyxis arachnoidea. 6. Chersina angulata. 6. Kinyxis belliana. 
7. Manouria fusca. 
II. FRESHWATER-TORTOISES. 
A. ClSTUDINIDiB. 
1. Cistudo clausa (fig. 3). 2. Pyxidea mouhotii. 4. Cuora amboinensis 
(fig. 4). 8. Cyclcmys orbiculata. 
B. Chelydeadjg. 
Sect. 1. Crucisterna. 
Tribe 1. Chelydraina, with 1. Mact'oehelys. 2. Chelydra. 
Tribe 2. Staurotypina, with 3. Staurotypus (skull, fig. 6). 4. Stau- 
remys. 
Tribe 3. Aromochelyina, with 6. Aromochelys. 
Sect. 2. Kinosterna. 
Tribe 4. Kinosternina, with 7. Swanka : scorpioides (p. 181) ; ma- 
culata, sp. n., from Mexico (p. 182) ; fasciata^ sp. n., hab. — ?, 
p. 183,' 8. Kinosternum. 
C. Emydidae. 
Sect. 1. Amphihioclemmys. 
Tribe 1. Geoemydina, with 1. Geoemyda. 2. Melanochelys, g. n. 
for Emys trijuga (p. 187, fig. 6). , ^ 
Tribe 2. Geoclemmj^dina, with 3. Geoclenwiys. 4t. Nicoria. 6. Phi- 
nochmmys (annulata and scabra, p. 189). 
Tribe 3. Emydina, with 6. Emys (japonica and tristrami, p. 190 ) ; 
7. Clemmys caspica; 8. Chrysemys picta; 9. Graptemys; 
10. Callichelysx, 11. Deirochelys. 
Tribe 4. IMalaclemmydina, with 12. Malaclemmys concentrica 
(fig, 7). 13. Damonia., g. n., for macrocephala (fig. 8), reevesii, 
