OP THE UPPER MISSOURI. 
177 
CHAPTER XVII. 
REPTILES, FISHES, AND RECENT SHELLS. 
A. Reptiles. 
TESTUDINATA. 
Trionyx, 
Emys elegans, 
Emys, 
Cistudo, 
OPHIDIA. 
Gaudisona Lecontei, Cope, 
Crotalus tergeminus, Say, 
Thamnophis sirtalis var. parietalis, B. 
Thamnophis Haydeni, Cope, 
Tropidonotus sipedon, 
Heterodon nasicus, B. & G., 
PlTYOPIIIS SAYI, B. & G., 
Lampropeltis multistriata, Kenn., 
Lampropeltis Sayi, Cope, 
Natiiix obsoleta, Cope, 
Natrix rhinomegas, Cope, 
Bascanium flaviventris, B. & G., 
Liopeltis venalis, B. & G., 
SAUPIA. 
Yellowstone river. 
44 44 
Mouth of Powder river. 
« u i( 
Yellowstone river. 
44 44 
& G., Loup fork. 
Sand hills. 
Yellowstone river. 
Sand hills of Loup fork. 
u u u 
Port Benton on the Missouri. 
Missouri river. 
Missouri river to valley of the Platte. 
u 44 u u 
Head of Loup fork. 
Yellowstone river. 
SCELOPORUS CONSOBRINUS, B. & G., 
Sceloporus graciosus, B. & G., 
IIolbrookia maculata, Girard, 
Holbrookia Douglasii, 
Cnemidophorus sexlineatus, Dum., Bibr., 
Plestiodon leptogrammus, Baird, 
Plestiodon multivirgatus, Hallow., 
Plestiodon inornatus, Baird, 
Plestiodon septentrionalis, Baird, 
B ATRAC HI A. 
Rana iialecina, Kalrn, 
Helecetes triseriatus, Max., 
Bufo Americanus, Lee., 
Bufo cognatus, Say, 
Sand hills, valley of the Platte. 
u u u 
u u u 
4; 44 44 
44 44 44 
44 44 44 
44 44 44 
44 44 44 
44 44 44 
Mouth of Yellowstone. 
Along the Missouri river. 
44 44 44 
YOL. XII.—23 
