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265 results
Rocky Mountain Bighorn Sheep. Mike Delliveneri/CPW

invasive

Rocky Mountain Bighorn Sheep

Mammal - Ovis canadensis

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This species needs a photo.

invasive

State Special Concern

Rocky Mountain Capshell

Mollusk - Acroloxus coloradensis

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Roundtail Horned Lizard, Patrick Alexander, CC0

invasive

Round-tailed Horned Lizard

Reptile - Phrynosoma modestum

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Rubber Boa, NPS.

invasive

Rubber Boa

Reptile - Charina bottae

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Rusty Crayfish, Peter Pearsall, FWS

invasive

Rusty Crayfish

Crustacean - Orconectes rusticus

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Sacramento perch illustration by Joseph R. Tomelleri.

invasive

Sacramento Perch

Fish - Archoplites interruptus

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invasive

State Special Concern

Sandhill Crane

Bird - Grus canadensis

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Silver Haired Bat, Virginia State Parks

invasive

Silver-haired Bat

Mammal - Lasionycteris noctivagans

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Six-lined Racerunner, Tony Hober, CPW

invasive

Six-lined Racerunner

Reptile - Aspidoscelis (Cnemidophorus) sexlineata

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Smiths Black-headed Snake, Hobart Smith, NPS

invasive

Smith's Black-Headed Snake

Reptile - Tantilla hobartsmithi

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Smooth Green Snake (Opheodrys_vernalis), Don F Becker, CC0

invasive

Smooth Greensnake

Reptile - Opheodrys (Liochlorophis) vernalis

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