OF THE UPPER MISSOURI. 177 
CHAP TEs 27-15, 
REPTILES, FISHES, AND RECENT SHELLS. 
A. Reptiles. 
TESTUDINATA. 
TRIONYX, 
Emmys ELEGANS, 
Emys, 
Cistubo, 
OPHIDIA. 
Gavupisona Leconte1, Cope, 
CROTALUS TERGEMINUS, Say, 
THAMNOPHIS SIRTALIS var. PARIETALIS, B. & G., 
THAMNOPHIS Hayprnt, Cope, 
'TROPIDONOTUS SIPEDON, 
Hereropon nasicus, B. & G., 
Piryornis Savi, B. & G., 
LAMPROPELTIS MULTISTRIATA, Kenn., 
Lampropettis Sayi, Cope, 
NATRIX OBSOLETA, Cope, 
NATRIX RHINOMEGAS, Cope, 
BASCANIUM FLAVIVENTRIS, B. & G., 
LIOPELTIS VENALIS, B. & G., 
SAURIA. 
ScELOPORUS CONSOBRINUS, B. & G., 
SCELOPORUS GRACIOSUS, B. & G., 
HoLBRooKIA MACULATA, Girard, 
Horsrooxia DovuG.asu, 
CNEMIDOPHORUS SEXLINEATUS, Dum., Bibr., 
PLESTIODON LEPTOGRAMMUS, Baird, 
PLESTIODON MULTIVIRGATUS, Hallow., 
PLESTIODON INORNATUS, Baird, 
PLESTIODON SEPTENTRIONALIS, Baird, 
BATRACHIA. 
RANA HALECINA, Kalm, 
HELECETES TRISERIATUS, Max., 
Buro AMERICANUS, Lec., 
Buro CoGNATUS, Say, 
VOL. X1I.—23 
Yellowstone river. 
sc oe 
Mouth of Powder river. 
“c “ “ce 
Yellowstone river. 
Loup fork. 
- Sand hills. 
Yellowstone river. 
Sand hills of Loup fork. 
Fort Benton on the Missouri. 
Missouri river. 
Missouri river to valley of the Platte. 
Head of Loup fork. 
Yellowstone river. 
Sand hills, valley of the Platte. 
Mouth of Yellowstone. 
Along the Missouri river. 
“cs 6s “cs 
