This site will look much better in a browser that supports web standards, but it is accessible to any browser or Internet device.


Oregon County, Missouri


Species List

Salamanders (Caudata)

Frogs (Anura)

Lizards (Lacertilia)

Snakes (Serpentes)

Turtles (Testudines)

Collection Summary

Oregon County has a total of 336 valid, non-duplicated collections representing 55 species and 82 localities. There are a total of 52 collectors and 76 collection dates for the county. This results in a total of 84 expeditions for the county, a measure of unique date / collector(s) combinations. The county's earliest collection year is 1892 and its most recent collection year is 2017. The earliest and latest collection dates (independent of earliest and most recent collection years) are January 17 and October 23, respectively. If you have a new record to report for Oregon County, read the New Records section of the FAQ.

Collection Summary by Species

Collection summary for Oregon County by species. Some values are unavailable since some records are represented solely by historical literature reports, which sometimes lack complete collecting data. Click on a species or common name to view more information about that species. Click on column headings to sort by that column.
Species Common Name Localities Collections Collectors Dates Expeditions Earliest Year Latest Year
Acris blanchardi Blanchard's Cricket Frog 6 16 9 7 7 1934 1973
Agkistrodon contortrix Copperhead 2 2 2 2 2 1941 1973
Agkistrodon piscivorus Western Cottonmouth 1 1 1 1 1 1956 1956
Ambystoma annulatum Ringed Salamander 1 1 1 1 1 2002 2002
Ambystoma maculatum Spotted Salamander 4 5 4 3 4 1902 2014
Ambystoma opacum Marbled Salamander 2 2 3 2 2 1986 1986
Anaxyrus americanus American Toad 4 8 6 4 4 1900 1953
Anaxyrus fowleri Fowler's Toad 3 3 2 3 3 1939 1939
Carphophis vermis Western Wormsnake 2 3 2 2 2 1956 1956
Chelydra serpentina Snapping Turtle 3 3 3 3 3 1940 2005
Chrysemys picta Western Painted Turtle 2 2 2 2 2 2005 2017
Coluber constrictor North American Racer 4 4 4 4 4 1900 2007
Coluber flagellum Eastern Coachwhip 3 4 3 4 4 1901 1941
Cryptobranchus alleganiensis Hellbender 7 24 10 9 10 1900 1990
Diadophis punctatus Ring-necked Snake 3 3 3 3 3 1940 1973
Eurycea longicauda Long-tailed Salamander 8 46 8 8 9 1928 2011
Eurycea lucifuga Cave Salamander 4 13 8 5 6 1928 1973
Eurycea spelaea Grotto Salamander 2 5 6 4 4 1906 1941
Gastrophryne carolinensis Eastern Narrow-mouthed Toad 1 2 1 1 1 1941 1941
Graptemys geographica Northern Map Turtle 5 5 3 2 2 1978 2017
Haldea striatula Rough Earthsnake 1 1 1 1 1 1956 1956
Heterodon platirhinos Eastern Hog-nosed Snake 3 3 4 3 3 1956 2006
Hyla chrysoscelis Cope's Gray Treefrog 2 22 3 3 3 1989 2007
Lampropeltis calligaster Prairie Kingsnake 1 1 1 1 1 1956 1956
Lampropeltis holbrooki Speckled Kingsnake 3 5 4 4 4 1901 2005
Lampropeltis triangulum Eastern Milksnake 1 2 2 2 2 1901 1901
Lithobates catesbeianus American Bullfrog 3 3 3 3 3 1939 1973
Lithobates clamitans Green Frog 5 6 5 6 6 1939 1965
Lithobates palustris Pickerel Frog 2 7 6 4 5 1940 1973
Lithobates sphenocephalus Southern Leopard Frog 5 6 6 5 5 1900 1973
Macrochelys temminckii Alligator Snapping Turtle 1 1 2 1 1 2004 2004
Necturus maculosus Mudpuppy 1 2 4 1 1 2005 2005
Nerodia erythrogaster Plain-bellied Watersnake 2 2 3 2 2 1974 2005
Nerodia sipedon Common Watersnake 7 31 7 7 7 1930 1976
Notophthalmus viridescens Central Newt 2 9 2 3 3 1966 1973
Opheodrys aestivus Northern Rough Greensnake 1 2 2 2 2 1900 1900
Ophisaurus attenuatus Western Slender Glass Lizard 2 3 3 3 3 1901 1956
Pantherophis obsoletus Western Ratsnake 6 6 4 5 5 1950 2017
Plestiodon anthracinus Southern Coal Skink 1 9 1 1 1 1950 1950
Plestiodon fasciatus Common Five-lined Skink 4 4 4 4 4 1901 1973
Plethodon albagula Western Slimy Salamander 3 7 3 2 3 1938 1973
Plethodon serratus Southern Red-backed Salamander 3 3 3 3 3 1950 2011
Pseudacris crucifer Spring Peeper 2 2 1 2 2 1892 1961
Pseudacris feriarum Upland Chorus Frog 1 1 1 1 1 1961 1961
Pseudemys concinna River Cooter 1 1 2 1 1 2017 2017
Sceloporus consobrinus Prairie Lizard 5 7 4 5 5 1901 1973
Scincella lateralis Little Brown Skink 3 5 2 2 2 1940 1940
Sistrurus miliarius Western Pygmy Rattlesnake 3 3 2 3 3 1900 1961
Sternotherus odoratus Eastern Musk Turtle 3 3 3 3 3 1941 2005
Storeria dekayi DeKay's Brownsnake 1 2 2 2 2 1900 1900
Storeria occipitomaculata Northern Red-bellied Snake 2 3 3 3 3 1900 1939
Tantilla gracilis Flat-headed Snake 1 1 1 1 1 1956 1956
Terrapene carolina Three-toed Box Turtle 9 9 4 5 5 2005 2017
Thamnophis sirtalis Common Gartersnake 3 5 4 4 4 1900 1973
Trachemys scripta Red-eared Slider 5 7 3 2 2 2007 2017

Potential Species Records

Potential species for Oregon County. Species are listed in descending order of their likelihood of occurrence within the county. Click on a species or common name to view more information about that species. Click on column headings to sort by that column.
Likelihood Species Common Name Rationale Ecoregion / Watershed
2 Apalone spinifera Eastern Spiny Softshell Same watershed, within 5 miles Current
2 Thamnophis proximus Orange-striped Ribbonsnake Same Level IV ecoregion, within 5 miles Current River Hills
4 Aspidoscelis sexlineata Six-lined Racerunner Same Level IV ecoregion, within 10 miles Current River Hills
4 Crotalus horridus Timber Rattlesnake Same Level IV ecoregion, within 10 miles Current River Hills
4 Hyla cinerea Green Treefrog Same Level IV ecoregion, within 10 miles Central Plateau
4 Kinosternon subrubrum Mississippi Mud Turtle Same Level IV ecoregion, within 10 miles Current River Hills
4 Lithobates sylvaticus Wood Frog Same Level IV ecoregion, within 10 miles Current River Hills
4 Pantherophis emoryi Great Plains Ratsnake Same Level IV ecoregion, within 10 miles Current River Hills
4 Plestiodon laticeps Broad-headed Skink Same Level IV ecoregion, within 10 miles Current River Hills
6 Ambystoma tigrinum Eastern Tiger Salamander Same Level IV ecoregion, within 20 miles Central Plateau
6 Crotaphytus collaris Eastern Collared Lizard Same Level IV ecoregion, within 20 miles Current River Hills
6 Graptemys ouachitensis Ouachita Map Turtle Same watershed, within 20 miles Current
6 Graptemys pseudogeographica False Map Turtle Same watershed, within 20 miles Current
6 Hemidactylium scutatum Four-toed Salamander Same Level IV ecoregion, within 20 miles Current River Hills
6 Hyla versicolor Gray Treefrog Same Level IV ecoregion, within 20 miles Central Plateau
6 Siren intermedia Western Lesser Siren Same watershed, within 20 miles Spring
6 Virginia valeriae Western Smooth Earthsnake Same Level IV ecoregion, within 20 miles Current River Hills
8 Amphiuma tridactylum Three-toed Amphiuma Same watershed, within 30 miles Current
8 Eurycea tynerensis Oklahoma Salamander Same Level IV ecoregion, within 30 miles Central Plateau
9 Plethodon angusticlavius Ozark Zigzag Salamander Same Level III ecoregion, within 30 miles Ozark Highlands
9 Pseudacris fouquettei Cajun Chorus Frog Same Level III ecoregion, within 30 miles Ozark Highlands
10 Ambystoma texanum Small-mouthed Salamander Same Level IV ecoregion, adjacent county Central Plateau
10 Terrapene ornata Ornate Box Turtle Same Level IV ecoregion, adjacent county Central Plateau
11 Ambystoma talpoideum Mole Salamander Same Level III ecoregion, adjacent county Ozark Highlands
11 Nerodia fasciata Broad-banded Watersnake Same Level III ecoregion, adjacent county Ozark Highlands

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.