Species List
Salamanders (Caudata)
- Ambystoma texanum (Matthes, 1855) - Small-mouthed Salamander
- Ambystoma tigrinum (Green, 1825) - Eastern Tiger Salamander
Frogs (Anura)
- Anaxyrus americanus (Holbrook, 1836) - American Toad
- Anaxyrus fowleri (Hinckley, 1882) - Fowler's Toad
- Acris blanchardi Harper, 1947 - Blanchard's Cricket Frog
- Pseudacris crucifer (Wied-Neuwied, 1838) - Spring Peeper
- Lithobates blairi (Mecham, Littlejohn, Oldham, Brown, and Brown, 1973) - Plains Leopard Frog
- Lithobates catesbeianus (Shaw, 1802) - American Bullfrog
- Lithobates clamitans (Latreille, 1801) - Green Frog
- Lithobates sphenocephalus (Cope, 1886) - Southern Leopard Frog
Lizards (Lacertilia)
- Aspidoscelis sexlineata (Linnaeus, 1766) - Six-lined Racerunner
- Plestiodon fasciatus (Linnaeus, 1758) - Common Five-lined Skink
- Ophisaurus attenuatus Cope, 1880 - Western Slender Glass Lizard
Snakes (Serpentes)
- Clonophis kirtlandii (Kennicott, 1856) - Kirtland's Snake
- Diadophis punctatus (Linnaeus, 1766) - Ring-necked Snake
- Heterodon platirhinos Latreille, 1801 - Eastern Hog-nosed Snake
- Lampropeltis calligaster (Harlan, 1827) - Prairie Kingsnake
- Lampropeltis triangulum (Lacépède, 1789) - Eastern Milksnake
- Nerodia rhombifer (Hallowell, 1852) - Diamond-backed Watersnake
- Nerodia sipedon (Linnaeus, 1758) - Common Watersnake
- Pantherophis obsoletus (Say, 1823) - Western Ratsnake
- Pantherophis vulpinus (Baird and Girard, 1853) - Eastern Foxsnake
- Pituophis catenifer (Blainville, 1835) - Bullsnake
- Regina grahamii Baird and Girard, 1853 - Graham's Crawfish Snake
- Storeria dekayi (Holbrook, 1836) - DeKay's Brownsnake
- Storeria occipitomaculata (Storer, 1839) - Northern Red-bellied Snake
- Thamnophis proximus (Say, 1823) - Orange-striped Ribbonsnake
- Thamnophis sirtalis (Linnaeus, 1758) - Common Gartersnake
- Agkistrodon contortrix (Linnaeus, 1766) - Copperhead
- Crotalus horridus Linnaeus, 1758 - Timber Rattlesnake
Turtles (Testudines)
- Chelydra serpentina (Linnaeus, 1758) - Snapping Turtle
- Kinosternon flavescens (Agassiz, 1857) - Yellow Mud Turtle
- Chrysemys picta (Schneider, 1783) - Western Painted Turtle
- Emydoidea blandingii (Holbrook, 1838) - Blanding's Turtle
- Graptemys geographica (LeSueur, 1817) - Northern Map Turtle
- 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) - Eastern Spiny Softshell
Collection Summary
Clark County has a total of 139 valid, non-duplicated collections representing 40 species and 59 localities. There are a total of 32 collectors and 67 collection dates for the county. This results in a total of 72 expeditions for the county, a measure of unique date / collector(s) combinations. The county's earliest collection year is 1910 and its most recent collection year is 2019. The earliest and latest collection dates (independent of earliest and most recent collection years) are April 12 and October 20, respectively. If you have a new record to report for Clark County, read the New Records section of the FAQ.
Collection Summary by Species
Potential Species Records
Likelihood | Species | Common Name | Rationale | Ecoregion / Watershed | |
---|---|---|---|---|---|
![]() | 2 | Coluber constrictor | North American Racer | Same Level IV ecoregion, within 5 miles | Loess Flats and Till Plains |
![]() | 2 | Pseudacris maculata | Boreal Chorus Frog | Same Level IV ecoregion, within 5 miles | Loess Flats and Till Plains |
![]() | 4 | Graptemys pseudogeographica | False Map Turtle | Same watershed, within 10 miles | Bear-Wyaconda |
![]() | 4 | Macrochelys temminckii | Alligator Snapping Turtle | Same watershed, within 10 miles | Bear-Wyaconda |
![]() | 4 | Necturus maculosus | Mudpuppy | Same watershed, within 10 miles | Bear-Wyaconda |
![]() | 4 | Sternotherus odoratus | Eastern Musk Turtle | Same watershed, within 10 miles | Bear-Wyaconda |
![]() | 6 | Carphophis vermis | Western Wormsnake | Same Level IV ecoregion, within 20 miles | Loess Flats and Till Plains |
![]() | 6 | Lithobates palustris | Pickerel Frog | Same Level IV ecoregion, within 20 miles | Loess Flats and Till Plains |
![]() | 6 | Virginia valeriae | Western Smooth Earthsnake | Same Level IV ecoregion, within 20 miles | Loess Flats and Till Plains |
![]() | 8 | Lithobates sylvaticus | Wood Frog | Same Level IV ecoregion, within 30 miles | Loess Flats and Till Plains |
![]() | 8 | Tropidoclonion lineatum | Lined Snake | Same Level IV ecoregion, within 30 miles | Loess Flats and Till Plains |
![]() | 9 | Lampropeltis holbrooki | Speckled Kingsnake | Same Level III ecoregion, within 30 miles | Central Irregular Plains |
![]() | 9 | Lithobates areolatus | Northern Crawfish Frog | Same Level III ecoregion, within 30 miles | Central Irregular Plains |
![]() | 10 | Opheodrys aestivus | Northern Rough Greensnake | Same Level IV ecoregion, adjacent county | Loess Flats and Till Plains |
![]() | 10 | Sistrurus catenatus | Eastern Massasauga | Same Level IV ecoregion, adjacent county | Upper Mississippi Alluvial Plain |
Checklist
All MOHAP publications are released in portable document format (PDF), an ISO standard. You must download and install a reader (click icon below) to view these documents. A state checklist, including all counties, is available on the publications page.
Daniel, R.E., B.S. Edmond, and J.T. Briggler. 2020. Checklist of Clark County Missouri Amphibians and Reptiles for 2019. <http://atlas.moherp.org/county/Clark>
Daniel, R.E., B.S. Edmond, and J.T. Briggler. 2020. Checklist of Clark County Missouri Amphibians and Reptiles for 2019. <http://atlas.moherp.org/county/Clark> (with common names)