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Washington County, Missouri

Collection Summary

Washington County has a total of 308 valid, non-duplicated collections representing 55 species and 54 localities. There are a total of 43 collectors and 70 collection dates for the county. This results in a total of 89 expeditions for the county, a measure of unique date / collector(s) combinations. The county's earliest collection year is 1894 and its most recent collection year is 2014. The earliest and latest collection dates (independent of earliest and most recent collection years) are January 5 and October 25, respectively. If you have a new record to report for Washington County, read the New Records section of the FAQ.

Collection Summary by Species

Collection summary for Washington 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 4 5 5 5 5 1909 1971
Agkistrodon contortrix Copperhead 3 8 3 4 4 1909 1962
Agkistrodon piscivorus Western Cottonmouth 1 1 1 1 1 1984 1984
Ambystoma maculatum Spotted Salamander 1 1 1 1 1 1990 1990
Ambystoma opacum Marbled Salamander 2 2 2 2 2 1990 1995
Ambystoma texanum Small-mouthed Salamander 1 1 1 1 1 1942 1942
Anaxyrus americanus American Toad 2 2 2 2 2 1909 1971
Anaxyrus fowleri Fowler's Toad 1 1 1 1 1 1909 1909
Apalone spinifera Eastern Spiny Softshell 3 10 3 6 7 1909 1983
Aspidoscelis sexlineata Six-lined Racerunner 1 1 1 1 1 1909 1909
Carphophis vermis Western Wormsnake 5 10 6 6 8 1909 1971
Chelydra serpentina Snapping Turtle 5 39 4 5 6 1909 2008
Chrysemys picta Western Painted Turtle 2 3 1 2 2 1976 1976
Coluber constrictor North American Racer 4 8 4 5 6 1909 1966
Coluber flagellum Eastern Coachwhip 3 3 2 3 3 1909 2014
Crotalus horridus Timber Rattlesnake 2 2 2 2 2 2003 2003
Crotaphytus collaris Eastern Collared Lizard 4 18 7 8 9 1894 1942
Diadophis punctatus Ring-necked Snake 6 14 7 8 11 1953 1972
Eurycea longicauda Long-tailed Salamander 6 12 8 8 9 1906 1965
Eurycea lucifuga Cave Salamander 1 1 1 1 1 1965 1965
Graptemys geographica Northern Map Turtle 3 22 1 4 4 1976 1977
Haldea striatula Rough Earthsnake 1 1 2 1 1 2014 2014
Hemidactylium scutatum Four-toed Salamander 1 1 1 1 1 1988 1988
Heterodon platirhinos Eastern Hog-nosed Snake 2 3 1 2 2 1909 1909
Lampropeltis calligaster Prairie Kingsnake 3 3 3 3 3 1991 2011
Lampropeltis holbrooki Speckled Kingsnake 3 8 4 4 5 1935 2011
Lampropeltis triangulum Eastern Milksnake 3 4 2 3 3 1909 2011
Lithobates catesbeianus American Bullfrog 1 2 2 2 2 1909 1942
Lithobates clamitans Green Frog 1 1 1 1 1 1909 1909
Lithobates palustris Pickerel Frog 2 2 1 2 2 1990 1990
Lithobates sphenocephalus Southern Leopard Frog 2 4 2 3 3 1909 1990
Necturus maculosus Mudpuppy 1 1 1 1 1 1909 1909
Nerodia sipedon Common Watersnake 2 5 1 2 2 1909 1909
Opheodrys aestivus Northern Rough Greensnake 1 3 2 3 3 1909 1935
Ophisaurus attenuatus Western Slender Glass Lizard 1 1 1 1 1 1989 1989
Pantherophis emoryi Great Plains Ratsnake 2 2 1 2 2 1909 1909
Pantherophis obsoletus Western Ratsnake 1 4 1 2 2 1909 1909
Plestiodon fasciatus Common Five-lined Skink 2 3 3 3 3 1935 1965
Plestiodon laticeps Broad-headed Skink 1 2 1 2 2 1909 1909
Plethodon albagula Western Slimy Salamander 6 12 10 8 11 1909 1971
Plethodon serratus Southern Red-backed Salamander 5 5 6 5 5 1952 2014
Pseudacris crucifer Spring Peeper 2 2 3 2 2 1909 1991
Sceloporus consobrinus Prairie Lizard 7 27 13 7 13 1909 2008
Scincella lateralis Little Brown Skink 8 15 10 8 10 1909 1991
Sistrurus miliarius Western Pygmy Rattlesnake 2 2 2 2 2 1951 1951
Sternotherus odoratus Eastern Musk Turtle 3 4 2 4 4 1909 1983
Storeria dekayi DeKay's Brownsnake 1 2 1 2 2 1953 1953
Storeria occipitomaculata Northern Red-bellied Snake 1 3 1 2 2 1909 1909
Tantilla gracilis Flat-headed Snake 1 1 1 1 1 1965 1965
Terrapene carolina Three-toed Box Turtle 5 6 3 5 5 1909 2005
Terrapene ornata Ornate Box Turtle 1 1 1 1 1
Thamnophis proximus Orange-striped Ribbonsnake 1 1 1 1 1 1996 1996
Thamnophis sirtalis Common Gartersnake 3 4 5 4 4 1942 1992
Trachemys scripta Red-eared Slider 2 2 2 2 2 1960 1976
Virginia valeriae Western Smooth Earthsnake 1 6 2 3 4 1953 1972