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- Photograph Available
- Taxonomic Comments Available
- Taxonomic Comments Since Collins and Taggart (2009)
This checklist is based on the sixth (2009) edition of Standard Common and Current Scientific Names for North American Amphibians, Turtles, Reptiles, and Crocodilians by Joseph T. Collins and Travis W. Taggart, and the third edition (2003) of the Peterson Field Guide to Western Reptiles and Amphibians by Robert C. Stebbins. Some common names in the latter publication are incorrect and users of this list should adhere to the names compiled herein in order to permit ease of use across the U.S. states and Canadian provinces. In addition to providing a complete hierarchical taxonomy (fully supported by current molecular evidence) with author attribution and year of description, the current scientific name of each native species of amphibian, reptile, and turtle that has been verified from Colorado is shown as well as its standard common name. This herpetofaunal checklist is updated daily by The Center for North American Herpetology, the only such service available to the North American herpetological community and Colorado herpetologists and biologists. CNAH is grateful for the assistance provided by Tina Jackson in constructing this list.
CLASS AMPHIBIA Gray, 1825 Amphibians |
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Order Anura Fischer von Waldheim, 1813 (Frogs & Toads) |
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Family Bufonidae - True Toads - Gray, 1825 |
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| Anaxyrus - Nearctic Toads - Tschudi, 1845 |
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| A. boreas - Western Toad - (Baird & Girard, 1852) |
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| A. cognatus - Great Plains Toad - (Say, 1823) |
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| A. debilis - Green Toad - (Girard, 1854) |
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| A. punctatus - Red-spotted Toad - (Baird & Girard, 1852) |
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| A. woodhousii - Woodhouse's Toad - (Girard, 1854) |
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Family Hylidae - Treefrogs - Rafinesque, 1815 |
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| Acris - Cricket Frogs - Duméril & Bibron, 1841 |
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| A. blanchardi - Blanchard's Cricket Frog - Harper, 1947 |
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Hyla - Treefrogs - Laurenti, 1768 |
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| H. arenicolor - Canyon Treefrog - Cope, 1866 |
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Pseudacris - Chorus Frogs - Fitzinger, 1843 |
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| P. maculata - Boreal Chorus Frog - (Agassiz, 1850) |
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Family Microhylidae - Microhylid Frogs & Toads - Gunther, 1843 |
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| Gastrophryne - Narrowmouth Toads - Fitzinger, 1843 |
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| G. olivacea - Great Plains Narrowmouth Toad - (Hallowell, 1856) |
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Family Ranidae - True Frogs - Rafinesque, 1814 |
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| Lithobates - North American True Frogs - Ftizinger, 1843 |
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L. blairi - Plains Leopard Frog - (Mecham, Littlejohn,  Oldham, Brown & Brown, 1973) |
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| L. catesbeianus - Bullfrog - (Shaw, 1802) |
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| L. pipiens - Northern Leopard Frog - (Schreber, 1782) |
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| L. sylvaticus - Wood Frog - (LeConte, 1825) |
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Family Scaphiopodidae - North American Spadefoots - Cope, 1865 |
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| Scaphiopus - Southern Spadefoots - Holbrook, 1836 |
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| S. couchii - Couch's Spadefoot - Baird, 1854 |
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Spea - Western Spadefoots - Cope, 1866 |
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| S. bombifrons - Plains Spadefoot - (Cope, 1863) |
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| S. intermontana - Great Basin Spadefoot - (Cope, 1883) |
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| S. multiplicata - New Mexico Spadefoot - (Cope, 1863) |
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Order Caudata Scopoli, 1777 (Salamanders) |
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Family Ambystomatidae - Mole Salamanders - Gray, 1850 |
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| Ambystoma - Mole Salamanders - Tschudi, 1838 |
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| A. mavortium - Barred Tiger Salamander - Baird, 1850 |
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CLASS CHELONIA Macartney (in Ross), 1802 Turtles |
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Order Cryptodira Cope, 1868 (Straightneck Turtles) |
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Family Chelydridae - Snapping Turtles - Gray, 1870 |
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| Chelydra - Snapping Turtle - Schweigger, 1812 |
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| C. serpentina - Common Snapping Turtle - (Linnaeus, 1758) |
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Family Emydidae - Box and Basking Turtles - Gray, 1825 |
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| Chrysemys - Painted Turtles - Gray, 1844 |
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| C. picta - Northern Painted Turtle - (Schneider, 1783) |
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Terrapene - Box Turtles - Merrem, 1820 |
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| T. ornata - Ornate Box Turtle - (Agassiz, 1857) |
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Family Kinosternidae - Mud and Musk Turtles - Agassiz, 1857 |
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| Kinosternon - Mud Turtles - Spix, 1824 |
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| K. flavescens - Yellow Mud Turtle - (Agassiz, 1857) |
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Family Trionychidae - Softshells - Bell, 1828 |
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| Apalone - North American Softshells - Rafinesque, 1832 |
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| A. spinifera - Spiny Softshell - (LeSueur, 1827) |
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CLASS REPTILIA Laurenti, 1768 Amphisbaenians, Lizards, Snakes & Tuataras |
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Order Squamata Oppel, 1811 (Lizards) |
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Family Crotaphytidae - Collared and Leopard Lizards - Smith & Brodie, 1982 |
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| Crotaphytus - Collared Lizards - Holbrook, 1842 |
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| C. collaris - Eastern Collared Lizard - (Say, 1823) |
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Gambelia - Leopard Lizards - Baird, 1858 |
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| G. wislizenii - Longnose Leopard Lizard - (Baird & Girard, 1852) |
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Family Phrynosomatidae - Spiny Lizards - Fitzinger, 1843 |
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| Holbrookia - Earless Lizards - Girard, 1851 |
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| H. maculata - Lesser Earless Lizard - Girard, 1851 |
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Phrynosoma - Horned Lizards - Wiegmann, 1828 |
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| P. cornutum - Texas Horned Lizard - (Harlan, 1825) |
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| P. hernandesi - Mountain Short-horned Lizard - Girard, 1858 |
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| P. modestum - Roundtail Horned Lizard - Girard, 1852 |
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Sceloporus - Spiny Lizards - Wiegmann, 1828 |
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| S. consobrinus - Prairie Lizard - Baird & Girard, 1853 |
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| S. graciosus - Sagebrush Lizard - Baird & Girard, 1852 |
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| S. magister - Desert Spiny Lizard - Hallowell, 1854 |
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| S. tristichus - Northern Plateau Lizard - Cope, 1875 |
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Urosaurus - Tree & Brush Lizards - Hallowell, 1854 |
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| U. ornatus - Tree Lizard - (Baird & Girard, 1852) |
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Uta - Side-blotched Lizards - Baird & Girard, 1852 |
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| U. stansburiana - Side-blotched Lizard - Baird & Girard, 1852 |
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Family Scincidae - Skinks - Gray, 1825 |
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| Plestiodon - North American Skinks - Dumeril & Bibron 1839 |
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| P. multivirgatus - Many-lined Skink - Hallowell, 1857 |
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| P. obsoletus - Great Plains Skink - Baird & Girard, 1852 |
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Family Teiidae - Whiptails, Racerunners & Ameivas - Gray, 1827 |
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| Aspidoscelis - North American Whiptails & Racerunners - Fitzinger, 1843 |
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| A. neotesselata - Southeastern Colorado Whiptail - (Walker, Cordes & Taylor, 1997) |
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| A. sexlineata - Six-lined Racerunner - (Linnaeus, 1766) |
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| A. tesselata - Colorado Checkered Whiptail - (Say, 1823) |
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| A. tigris - Western Whiptail - (Baird & Girard, 1852) |
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| A. velox - Plateau Striped Whiptail - (Springer, 1928) |
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Order Squamata Oppel, 1811 (Snakes) |
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Family Boidae - Boas - Gray, 1842 |
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| Charina - Rubber Boas - Gray, 1849 |
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| C. bottae - Northern Rubber Boa - (Blainville, 1835) |
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Family Colubridae - Harmless Egg-Laying Snakes - Oppel, 1811 |
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| Arizona - Glossy Snakes - Kennicott, 1859 |
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| A. elegans - Eastern Glossy Snake - Kennicott, 1859 |
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Coluber - Racers - Linnaeus, 1758 |
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| C. constrictor - Eastern Racer - Linnaeus, 1758 |
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| C. mormon - Western Racer - Baird & Girard, 1852 |
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Lampropeltis - Kingsnakes & Milk Snake - Fitzinger, 1843 |
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| L. getula - Common Kingsnake - (Linnaeus, 1766) |
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| L. triangulum - Milk Snake - (Lacépède, 1788) |
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Liochlorophis - Smooth Green Snake - Oldham & Smith, 1991 |
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| L. vernalis - Smooth Green Snake - (Harlan, 1827) |
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Masticophis - Whipsnakes, Striped Racers, & Coachwhips - Baird & Girard, 1853 |
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| M. flagellum - Coachwhip - (Shaw, 1802) |
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| M. taeniatus - Striped Whipsnake - (Hallowell, 1852) |
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Pantherophis - Corn Snakes & Great Plains Rat Snake - Fitzinger, 1843 |
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| P. emoryi - Great Plains Rat Snake - (Baird & Girard, 1853) |
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Pituophis - Bullsnake, Pine Snakes, & Gopher Snake - Holbrook, 1842 |
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| P. catenifer - Gopher Snake - (Blainville, 1835) |
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Rhinocheilus - Longnose Snake - Baird & Girard, 1853 |
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| R. lecontei - Longnose Snake - Baird & Girard, 1853 |
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Sonora - Ground Snakes - Baird & Girard, 1853 |
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| S. semiannulata - Ground Snake - Baird & Girard, 1853 |
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Tantilla - Blackhead, Flathead, & Crowned Snakes - Baird & Girard, 1853 |
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| T. hobartsmithi - Southwestern Blackhead Snake - Taylor, 1936 |
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| T. nigriceps - Plains Blackhead Snake - Kennicott, 1860 |
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Family Crotalidae - Pitvipers - Oppel, 1811 |
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| Crotalus - Rattlesnakes - Linnaeus, 1758 |
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| C. concolor - Midget Faded Rattlesnake - Woodbury, 1929 |
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| C. viridis - Prairie Rattlesnake - (Rafinesque, 1818) |
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Sistrurus - Pigmy Rattlesnake and Massasauga - Garman, 1883 |
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| S. catenatus - Massasauga - (Rafinesque, 1818) |
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Family Dipsadidae - Rear-Fanged Snakes - Bonaparte, 1838 |
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| Diadophis - Ringneck Snake - Baird & Girard, 1853 |
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| D. punctatus - Ringneck Snake - (Linnaeus, 1766) |
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Heterodon - Hognose Snakes - Latreille, 1801 |
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| H. nasicus - Western Hognose Snake - Baird & Girard, 1852 |
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Hypsiglena - Night Snakes - Cope, 1860 |
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| H. chlorophaea - Desert Night Snake - Cope, 1860 |
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| H. jani - Chihuahuan Night Snake - (Dugès, 1865) |
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Family Leptotyphlopidae - Slender Blind Snakes - Stejneger, 1891 |
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| Rena - Blind Snakes - Baird & Girard, 1853 |
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| R. dissecta - New Mexico Blind Snake - (Cope, 1896) |
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Family Natricidae - Harmless Live-Bearing Snakes - Bonaparte, 1840 |
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| Nerodia - Water Snakes & Salt Marsh Snake - Baird & Girard, 1853 |
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| N. sipedon - Northern Water Snake - (Linnaeus, 1758) |
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Storeria - Brown Snake & Redbelly Snake - Baird & Girard, 1853 |
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| S. dekayi - Brown Snake - (Holbrook, 1836) |
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Thamnophis - Garter & Ribbon Snakes - Fitzinger, 1843 |
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| T. cyrtopsis - Blackneck Garter Snake - (Kennicott, 1860) |
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| T. elegans - Western Terrestrial Garter Snake - (Baird & Girard, 1853) |
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| T. proximus - Western Ribbon Snake - (Say, 1823) |
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| T. radix - Plains Garter Snake - (Baird & Girard, 1853) |
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| T. sirtalis - Common Garter Snake - (Linnaeus, 1758) |
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Tropidoclonion - Lined Snake - Cope, 1860 |
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| T. lineatum - Lined Snake - (Hallowell, 1856) |
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| © 1994-2010, CNAH - Director - Joseph T. Collins | Programmer/Webmaster - Travis W. Taggart |
| Accessed at: 9/8/2010 7:47:37 PM CT. | |