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Worth County, Missouri

Maps

Landmark Map

Landmark locality map for Worth County, Missouri
Landmark locality map for Worth County, Missouri
Map created 15 April 2026.

Interstate HighwayRailroadUS Army Corps of Engineers
US HighwayDepartment of ConservationUS Fish and Wildlife Service
State HighwayDepartment of Natural ResourcesNational Park Service
County HighwayUS Forest ServiceUS Department of Defense

Locator Map

Locator map for Worth County, Missouri
Locator map for Worth County, Missouri
Map created 15 April 2026.

Natural Divisions Locality Map

Natural divisions and sections locality map for Worth County, Missouri
Natural Divisions locality map for Worth County, Missouri
Map created 15 April 2026.

Ecological Drainage Unit Locality Map

Ecological drainage unit locality map for Worth County, Missouri
Ecological Drainage Units locality map for Worth County, Missouri
Map created 15 April 2026.

Major Watersheds Locality Map

Major watersheds locality map for Worth County, Missouri
Major Watersheds locality map for Worth County, Missouri
Map created 15 April 2026.

Major Rivers Locality Map

Major rivers locality map for Worth County, Missouri
Major Rivers locality map for Worth County, Missouri
Map created 15 April 2026.

Level I Ecoregion Locality Map

Level I Ecoregion locality map for Worth County, Missouri
Level I Ecoregion locality map for Worth County, Missouri
Map created 15 April 2026.

Level II Ecoregion Locality Map

Level II Ecoregion locality map for Worth County, Missouri
Level II Ecoregion locality map for Worth County, Missouri
Map created 15 April 2026.

Level III Ecoregion Locality Map

Level III Ecoregion locality map for Worth County, Missouri
Level III Ecoregion locality map for Worth County, Missouri
Map created 15 April 2026.

Level IV Ecoregion Locality Map

Level IV Ecoregion locality map for Worth County, Missouri
Level IV Ecoregion locality map for Worth County, Missouri
Map created 15 April 2026.

Presettlement Prairie Locality Map

Presettlement prairie locality map for Worth County, Missouri
Presettlement Prairie locality map for Worth County, Missouri
Map created 15 April 2026.

Historical Vegetation Map

Historical vegetation map for Worth County, Missouri
Historical Vegetation map for Worth County, Missouri
Map created 15 April 2026.

WaterPrairieBarrens / Scrub
ForestWoodlandOpen Woodland

Geology Locality Map

Geology locality map for Worth County, Missouri
Geology locality map for Worth County, Missouri
Map created 15 April 2026.

AlluviumSandstoneDolomiteLimestone
ClaySandstone / LimestoneDolomite / LimestoneLimestone / Sandstone
IgneousSandstone / DolomiteDolomite / ShaleLimestone / Shale
Limestone / Sandstone / Shale

Species List

Salamanders (Caudata)

Frogs (Anura)

Lizards (Squamata, "Lizards")

Snakes (Squamata, "Snakes")

Turtles (Testudines)

Collection Summary

Worth County has a total of 36 valid, non-duplicated collections representing 20 species and 21 localities. There are a total of 13 collectors and 17 collection dates for the county. This results in a total of 19 expeditions for the county, a measure of unique date / collector(s) combinations. The county's earliest collection year is 1961 and its most recent collection year is 2004. The earliest and latest collection dates (independent of earliest and most recent collection years) are April 5 and October 9, respectively. If you have a new record to report for Worth County, read the New Records section of the FAQ.

Collection Summary by Species

Collection summary for Worth 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 1 6 2 1 1 1985 1985
Anaxyrus americanus American Toad 3 3 4 3 3 1982 1992
Apalone spinifera Northern Spiny Softshell 1 1 1 1 1 1986 1986
Chelydra serpentina North American Snapping Turtle 1 1 1 1 1 1992 1992
Coluber constrictor North American Racer 1 1 1 1 1 2000 2000
Diadophis punctatus Ring-necked Snake 2 3 3 2 2 1985 2000
Dryophytes chrysoscelis Cope's Gray Treefrog 1 4 1 1 1 1983 1983
Heterodon platirhinos Eastern Hog-nosed Snake 1 1 1 1 1 2002 2002
Lampropeltis calligaster Prairie Kingsnake 1 1 2 1 1 2002 2002
Lampropeltis holbrooki Speckled Kingsnake 1 1 1 1 1 2001 2001
Lithobates blairi Plains Leopard Frog 1 1 2 1 1 1985 1985
Lithobates catesbeianus North American Bullfrog 1 2 2 1 1 1985 1985
Nerodia sipedon Common Watersnake 1 1 1 1 1 1992 1992
Pantherophis obsoletus Western Ratsnake 2 2 3 2 2 1982 2001
Plestiodon septentrionalis Prairie Skink 2 2 3 2 2 1997 1998
Pseudacris crucifer Spring Peeper 1 1 2 1 1 2001 2001
Pseudacris maculata Boreal Chorus Frog 1 1 1 1 1 2001 2001
Storeria dekayi DeKay's Brownsnake 1 1 1 1 1 1992 1992
Thamnophis sirtalis Common Gartersnake 1 1 1 1 1 1961 1961
Tropidoclonion lineatum Lined Snake 2 2 2 2 2 1998 2004

Potential Species Records

Potential species for Worth 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 Ambystoma tigrinum Eastern Tiger Salamander Same Level IV ecoregion, within 5 miles Rolling Loess Prairies
2 Chrysemys picta Western Painted Turtle Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Pituophis catenifer Bullsnake Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Virginia valeriae Western Smooth Earthsnake Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
4 Agkistrodon contortrix Eastern Copperhead Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Carphophis vermis Western Wormsnake Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Dryophytes versicolor Gray Treefrog Same Level IV ecoregion, within 10 miles Rolling Loess Prairies
4 Lampropeltis triangulum Eastern Milksnake Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Terrapene ornata Ornate Box Turtle Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Terrapene triunguis Three-toed Box Turtle Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
6 Ambystoma texanum Small-mouthed Salamander Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Ambystoma texanum Small-mouthed Salamander Same Level IV ecoregion, within 20 miles Rolling Loess Prairies
6 Anaxyrus woodhousii Rocky Mountain Toad Same Level IV ecoregion, within 20 miles Rolling Loess Prairies
6 Crotalus horridus Timber Rattlesnake Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Nerodia rhombifer Northern Diamond-backed Watersnake Same Level IV ecoregion, within 20 miles Rolling Loess Prairies
6 Opheodrys vernalis Smooth Greensnake Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Ophisaurus attenuatus Western Slender Glass Lizard Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Plestiodon fasciatus Common Five-lined Skink Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Regina grahamii Graham's Crawfish Snake Same watershed, within 20 miles Upper Grand
6 Sistrurus tergeminus Prairie Massasauga Same Level IV ecoregion, within 20 miles Rolling Loess Prairies
6 Thamnophis proximus Orange-striped Ribbonsnake Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Thamnophis radix Plains Gartersnake Same Level IV ecoregion, within 20 miles Rolling Loess Prairies
8 Apalone mutica Midland Smooth Softshell Same watershed, within 30 miles Upper Grand
8 Trachemys scripta Red-eared Slider Same Level IV ecoregion, within 30 miles Loess Flats and Till Plains

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.