LIST OF ILLUSTRATIONS. 
MAMMALS. 
Page. 
Plate VIII.—Fig. 1 .—Resperomys texanus, Woodh.______ 18 
Fig. 2 . ..Perogtialus fiavus, Baird____-.-.-. 18 
Fig. 3 .—Resperomys boylii, Baird__18 
Plate XI .—Thomomys bulbivorus, Baird__— --- 18 
Plate XII.—Fig. 1 .—Thomomys laticeps, Baird-----. 13 
Fig. 2 .—Thomomys fulvus, Baird___18 
Plate VIII .—Lepus audubonii, Baird____.____ 18 
Plate XIV .—Lepus trowbridgii, Baird______ 18 
Plate XVI .—Antilocapra americana, Ord------- 18 
BIRDS. 
Plate XVIII.—Fig. 1 .—Panyptila melanoleuca, Baird____ 36 
Fig. 2 .—Chaetura vauxii, Be kay, (upper figure). 36 
Plate XIX. — Atthis costae, Reich______.__ 36 
Plate XX .—Corvus cacalotl, Wagler_____ 36 
Plate XXII .—■Corvus cryptoleucus, Couch________ 36 
Plate XXVII.—Fig. 1 .—Carpodacus cassinii, Baird......_ 36 
Fig. 2 .-—Mebspiza fallax, Baird_______._ 36 
Plate XXIX .—Pipilo mesoleucus, Baird___ 36 
Plate XXX .—Pipilo aberlii, Baird-------_ 36 
Plate XXXI .—Pyranga hepaiica, Sw._________ 3G 
Plate XXXIII—Fig. 1 .—Polioptila plumbea, Baird....... 36 
Fig. 2 .—Fsaltriparus plumbeus, Baird __________ 36 
Fig. 3 .—Sitta acideata, Cassin. 36 
Fig. 4 .—Silta carolinensis ....... 36 
Plate XXXVI .—Centurus uropygialis, Baird.......... 36 
Plate XXXVII .—Grus fraterculus, Cassin _________ 36 
REPTILES. 
Plate XXV.-—Fig 1 .—Bufo woodhousii, Grd____ 46 
Fig. 2 .—"Bufo americanus, Leconte_______ 46 
Plate XXVI.—Figs. 1-2 .—Bufo cogualus, Say... 46 
Plate XXVII.—Fig. 1 .—Bufo lentiginosus ....... 46 
Fig. 2 .—Engystoma ________ 46 
2 b 
