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Salamanders (Caudata)
- Siren intermedia Barnes, 1826 - Western Lesser Siren
- Cryptobranchus alleganiensis (Daudin, 1803) - Hellbender
- Ambystoma annulatum Cope, 1886 - Ringed Salamander
- Ambystoma maculatum (Shaw, 1802) - Spotted Salamander
- Ambystoma opacum (Gravenhorst, 1807) - Marbled Salamander
- Ambystoma talpoideum (Holbrook, 1838) - Mole Salamander
- Ambystoma texanum (Matthes, 1855) - Small-mouthed Salamander
- Ambystoma tigrinum (Green, 1825) - Eastern Tiger Salamander
- Notophthalmus viridescens (Rafinesque, 1820) - Central Newt
- Necturus maculosus (Rafinesque, 1818) - Common Mudpuppy
- Amphiuma tridactylum Cuvier, 1827 - Three-toed Amphiuma
- Eurycea longicauda (Green, 1818) - Long-tailed Salamander
- Eurycea lucifuga Rafinesque, 1822 - Cave Salamander
- Eurycea spelaea Stejneger, 1892 - Grotto Salamander
- Eurycea tynerensis Moore & Hughes, 1939 - Oklahoma Salamander
- Hemidactylium scutatum (Schlegel, 1838) - Four-toed Salamander
- Plethodon albagula Grobman, 1944 - Western Slimy Salamander
- Plethodon angusticlavius Grobman, 1944 - Ozark Zigzag Salamander
- Plethodon serratus Grobman, 1944 - Southern Red-backed Salamander
Frogs (Anura)
- Scaphiopus holbrookii (Harlan, 1835) - Eastern Spadefoot
- Spea bombifrons (Cope, 1863) - Plains Spadefoot
- Anaxyrus americanus Holbrook, 1836 - American Toad
- Anaxyrus cognatus Say, 1823 - Great Plains Toad
- Anaxyrus fowleri Hinckley, 1882 - Fowler's Toad
- Anaxyrus woodhousii Girard, 1854 - Woodhouse's Toad
- Acris crepitans Baird, 1854 - Northern Cricket Frog
- Hyla chrysoscelis Cope, 1880 - Cope's Gray Treefrog
- Hyla cinerea (Schneider, 1792) - Green Treefrog
- Hyla versicolor LeConte, 1825 - Gray Treefrog
- Pseudacris crucifer (Wied-Neuwied, 1838) - Spring Peeper
- Pseudacris feriarum (Baird, 1854) - Upland Chorus Frog
- Pseudacris fouquettei Lemmon, Lemmon, Collins & Cannatella, 2008 - Cajun Chorus Frog
- Pseudacris illinoensis Smith, 1951 - Illinois Chorus Frog
- Pseudacris maculata (Agassiz, 1850) - Boreal Chorus Frog
- Lithobates areolatus (Baird & Girard, 1852) - Northern Crawfish Frog
- Lithobates blairi (Mecham, Littlejohn, Oldham, Brown & Brown, 1973) - Plains Leopard Frog
- Lithobates catesbeianus (Shaw, 1802) - American Bullfrog
- Lithobates clamitans (Latreille, 1801) - Green Frog
- Lithobates palustris (LeConte, 1825) - Pickerel Frog
- Lithobates pipiens (Schreber, 1782) - Northern Leopard Frog
- Lithobates sphenocephalus (Cope, 1886) - Southern Leopard Frog
- Lithobates sylvaticus (LeConte, 1825) - Wood Frog
- Gastrophryne carolinensis (Holbrook, 1836) - Eastern Narrow-mouthed Toad
- Gastrophryne olivacea (Hallowell, 1856) - Western Narrow-mouthed Toad
Lizards (Lacertilia)
- Crotaphytus collaris (Say, 1823) - Eastern Collared Lizard
- Phrynosoma cornutum (Harlan, 1825) - Texas Horned Lizard
- Sceloporus consobrinus (Bosc & Daudin, 1801) - Prairie Lizard
- Aspidoscelis sexlineata (Linnaeus, 1766) - Six-lined Racerunner
- Plestiodon anthracinus (Baird, 1849) - Southern Coal Skink
- Plestiodon fasciatus (Linnaeus, 1758) - Common Five-lined Skink
- Plestiodon laticeps (Schneider, 1801) - Broad-headed Skink
- Plestiodon obsoletus (Baird & Girard, 1852) - Great Plains Skink
- Plestiodon septentrionalis (Baird, 1858) - Prairie Skink
- Scincella lateralis (Say, 1823) - Little Brown Skink
- Ophisaurus attenuatus Cope, 1880 - Western Slender Glass Lizard
Snakes (Serpentes)
- Carphophis vermis (Kennicott, 1859) - Western Wormsnake
- Cemophora coccinea (Blumenbach, 1788) - Scarletsnake
- Clonophis kirtlandii (Kennicott, 1856) - Kirtland's Snake
- Coluber constrictor Linnaeus, 1758 - North American Racer
- Coluber flagellum Shaw, 1802 - Coachwhip
- Diadophis punctatus (Linnaeus, 1766) - Ring-necked Snake
- Farancia abacura (Holbrook, 1836) - Western Mudsnake
- Heterodon gloydi Edgren, 1952 - Dusty Hog-nosed Snake
- Heterodon nasicus Baird & Girard, 1852 - Plains Hog-nosed Snake
- Heterodon platirhinos Latreille, 1801 - Eastern Hog-nosed Snake
- Lampropeltis calligaster (Harlan, 1827) - Prairie Kingsnake
- Lampropeltis getula (Linnaeus, 1766) - Speckled Kingsnake
- Lampropeltis triangulum (Lacepede, 1788) - Red Milksnake
- Nerodia cyclopion (Dumeril, Bibron & Dumeril, 1854) - Mississippi Green Watersnake
- Nerodia erythrogaster (Forster, 1771) - Plain-bellied Watersnake
- Nerodia fasciata (Linnaeus, 1766) - Southern Watersnake
- Nerodia rhombifer (Hallowell, 1852) - Diamond-backed Water Snake
- Nerodia sipedon (Linnaeus, 1758) - Northern Watersnake
- Opheodrys aestivus (Linnaeus, 1766) - Northern Rough Greensnake
- Opheodrys vernalis (Harlan, 1827) - Smooth Greensnake
- Pantherophis emoryi (Baird & Girard, 1853) - Great Plains Ratsnake
- Pantherophis obsoletus (Say, 1823) - Texas Ratsnake
- Pantherophis vulpinus (Baird & Girard, 1853) - Western Foxsnake
- Pituophis catenifer (Blainville, 1835) - Bullsnake
- Regina grahamii Baird & Girard, 1853 - Graham's Crayfish Snake
- Sonora semiannulata Baird & Girard, 1853 - Variable Groundsnake
- Storeria dekayi (Holbrook, 1836) - DeKay's Brownsnake
- Storeria occipitomaculata (Storer, 1839) - Northern Red-bellied Snake
- Tantilla gracilis Baird & Girard, 1853 - Flat-headed Snake
- Thamnophis proximus (Say, 1823) - Orange-striped Ribbonsnake
- Thamnophis radix (Baird & Girard, 1853) - Plains Gartersnake
- Thamnophis sirtalis (Linnaeus, 1758) - Common Gartersnake
- Tropidoclonion lineatum (Hallowell, 1856) - Lined Snake
- Virginia striatula (Linnaeus, 1766) - Rough Earthsnake
- Virginia valeriae Baird & Girard, 1853 - Western Smooh Earthsnake
- Agkistrodon contortrix (Linnaeus, 1766) - Copperhead
- Agkistrodon piscivorus (Lacepede, 1789) - Western Cottonmouth
- Crotalus horridus Linnaeus, 1758 - Timber Rattlesnake
- Sistrurus catenatus (Rafinesque, 1818) - Eastern Massasauga
- Sistrurus miliarius (Linnaeus, 1766) - Western Pygmy Rattlesnake
Turtles (Testudines)
- Chelydra serpentina (Linnaeus, 1758) - Eastern Snapping Turtle
- Macrochelys temminckii (Harlan, 1835) - Alligator Snapping Turtle
- Kinosternon flavescens (Agassiz, 1857) - Yellow Mud Turtle
- Kinosternon subrubrum (Lacepede, 1788) - Mississippi Mud Turtle
- Sternotherus odoratus (Latreille, 1802) - Eastern Musk Turtle
- Chrysemys dorsalis Agassiz, 1857 - Southern Painted Turtle
- Chrysemys picta (Schneider, 1783) - Western Painted Turtle
- Deirochelys reticularia (Latreille, 1801) - Western Chicken Turtle
- Emydoidea blandingii (Holbrook, 1838) - Blanding's Turtle
- Graptemys geographica (LeSueur, 1817) - Northern Map Turtle
- Graptemys ouachitensis Cagle, 1953 - Ouachita Map Turtle
- Graptemys pseudogeographica (Gray, 1831) - False Map Turtle
- Pseudemys concinna (LeConte, 1830) - Eastern River Cooter
- Terrapene carolina (Linnaeus, 1758) - Three-toed Box Turtle
- Terrapene ornata (Agassiz, 1857) - Ornate Box Turtle
- Trachemys scripta (Schoepff, 1792) - Red-eared Slider
- Apalone mutica (LeSueur, 1827) - Midland Smooth Softshell
- Apalone spinifera (LeSueur, 1827) - Spiny Softshell