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​  *Federally Threatened Species
**Federally Endangered Species

​  †State Threatened Species
††State Endangered Species

For more information about our reptiles, check Wildlife Illinois.

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Reptiles of Nachusa Grasslands

Snakes

Genus species (COMMON NAME)       

• Coluber constrictor foxii (blue racer)
• Heterodon platirhinos (Eastern hognose snake)
• Heterodon nasicus (Western hognose snake)
• Lampropeltis triangulatum triangulatum (Eastern milk snake)
• Nerodia sipedon sipedon (Northern water snake)
• Storeria dekayi wrightorum (Midland brown snake)
• Thamnaphis sirtalis sirtalis (Eastern garter snake)
• Thamnaphis radix radix (Eastern plains garter snake)
• Pantherophis vulpinus (Eastern fox snake)​
• Pituophis melanoleucus sayi (bull snake)

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Turtles

Genus species (COMMON NAME)   

• Apalone spinifera spinifera (Eastern spiny softshell turtle)
• ​Chelydra serpentina (​​common snapping turtle)
• Chrysemys pictamarginata (Midland painted turtle)
• Emydoidea blandingii (Blanding's turtle) ††
• Terrapene ornata ornata (ornate box turtle) †

Lizards

Genus species (COMMON NAME)   ​            

• Cnemidphorus sexlineatus (​​six-lined racerunner) *
• Ophisaurus attenuates (glass lizard) *

​*Not seen in many years

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Fauna of Nachusa Database​​

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UPDATED 05/2025