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Tropidoclonion lineatum (Hallowell, 1856) - Lined Snake

Maps

Locality Map

Locality map for Tropidoclonion lineatum (Lined Snake)
Locality map for Tropidoclonion lineatum (Lined Snake).
Map created 15 April 2026.

County Map

County map for Tropidoclonion lineatum (Lined Snake)
County map for Tropidoclonion lineatum (Lined Snake).
Map created 15 April 2026.

Historical Locality Map

Historical locality map for Tropidoclonion lineatum (Lined Snake)
Historical locality map for Tropidoclonion lineatum (Lined Snake). Black circles ( ) represent records after 1986, blue squares ( ) represent records between 1966 and 1986, orange triangles ( ) represent records prior to 1966. Note that more recent records might conceal underlying older records.
Map created 15 April 2026.

Historical County Map

Historical county map for Tropidoclonion lineatum (Lined Snake)
Historical county map for Tropidoclonion lineatum (Lined Snake). Black circles ( ) represent records after 1986, blue squares ( ) represent records between 1966 and 1986, orange triangles ( ) represent records prior to 1966. Note that only the most recent county record for each county is shown.
Map created 15 April 2026.

Ecological Drainage Locality Map

Ecological Drainage Units map for Tropidoclonion lineatum (Lined Snake)
Ecological Drainage Units locality map for Tropidoclonion lineatum (Lined Snake).
Map created 15 April 2026.

Natural Divisions Locality Map

Natural Divisions locality map for Tropidoclonion lineatum (Lined Snake)
Natural Divisions and Sections locality map for Tropidoclonion lineatum (Lined Snake).
Map created 15 April 2026.

Major Watersheds Locality Map

Major watersheds map for Tropidoclonion lineatum (Lined Snake)
Major Watersheds locality map for Tropidoclonion lineatum (Lined Snake).
Map created 15 April 2026.

Level I Ecoregion Locality Map

Level I Ecoregions map for Tropidoclonion lineatum (Lined Snake)
Level I Ecoregion locality map for Tropidoclonion lineatum (Lined Snake).
Map created 15 April 2026.

Level II Ecoregion Locality Map

Level II Ecoregions map for Tropidoclonion lineatum (Lined Snake)
Level II Ecoregion locality map for Tropidoclonion lineatum (Lined Snake).
Map created 15 April 2026.

Level III Ecoregion Locality Map

Level III Ecoregions map for Tropidoclonion lineatum (Lined Snake)
Level III Ecoregion locality map for Tropidoclonion lineatum (Lined Snake).
Map created 15 April 2026.

Level IV Ecoregion Locality Map

Level IV Ecoregions map for Tropidoclonion lineatum (Lined Snake)
Level IV Ecoregion locality map for Tropidoclonion lineatum (Lined Snake).
Map created 15 April 2026.

Native Status

Tropidoclonion lineatum (Lined Snake) is native to Missouri.

Collection Summary

Tropidoclonion lineatum (Lined Snake) has a total of 156 valid, non-duplicated collections representing 26 counties and 85 localities. There are a total of 61 collectors and 96 collection dates for the species. This results in a total of 99 expeditions for the species, a measure of unique date / collector(s) combinations. The earliest collection year for the species in Missouri is 1885 and its most recent collection year is 2023. The earliest and latest collection dates (independent of earliest and most recent collection years) are January 9 and November 15, respectively. If you have a new record to report, read the New Records section of the FAQ.

Collection Summary by County

Collection summary for Tropidoclonion lineatum (Lined Snake) by county. Some values are unavailable since some records are represented solely by historical literature reports, which sometimes lack complete collecting data. Click on a county name to view more information about that county. Click on column headings to sort by that column.
County Localities Collections Collectors Dates Expeditions Earliest Year Latest Year
Adair 2 2 1 2 2 2005 2006
Andrew 1 1 1 1 1 2022 2022
Barton 1 1 1 1 1 2021 2021
Bates 2 2 3 2 2 2016 2019
Caldwell 1 1 1 1 1 2017 2017
Cass 1 2 1 2 2 1964 1964
Clark 1 1 2 1 1 1995 1995
Clay 3 3 5 3 3 2013 2015
Gentry 1 1 1 1 1 2000 2000
Grundy 1 1 1 1 1 2020 2020
Harrison 1 1 2 1 1 1992 1992
Jackson 16 36 7 23 25 1935 1993
Jefferson 10 17 16 12 12 1936 2023
Johnson 4 4 4 4 4 1981 2013
Miller 2 3 2 2 2 1974 1976
Nodaway 1 1 1 1 1
Pettis 3 3 2 2 2 1982 2014
Polk 1 1 1 1 1 2012 2012
Putnam 1 1 1 1 1 2011 2011
Ray 1 1 1 1 1 1962 1962
Saint Louis 23 65 19 31 32 1885 1994
Saline 1 1 1 1 1 2005 2005
Schuyler 1 1 1 1 1 2015 2015
Sullivan 2 2 1 1 1 2005 2005
Vernon 1 1 1 1 1 1989 1989
Worth 2 2 2 2 2 1998 2004

Potential County Records

Potential counties for Tropidoclonion lineatum (Lined Snake). Counties are listed in descending order of their likelihood of having this species. Click on a county to view more information about that county. Click on column headings to sort by that column.
Likelihood County Rationale Ecoregion / Watershed
2 Benton Same Level IV ecoregion, within 5 miles Wooded Osage Plains
2 Buchanan Same Level IV ecoregion, within 5 miles Rolling Loess Prairies
2 Camden Same Level IV ecoregion, within 5 miles Osage/Gasconade Hills
2 Cedar Same Level IV ecoregion, within 5 miles Springfield Plateau
2 Daviess Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 De Kalb Same Level IV ecoregion, within 5 miles Rolling Loess Prairies
2 Hickory Same Level IV ecoregion, within 5 miles Springfield Plateau
2 Lafayette Same Level IV ecoregion, within 5 miles Rolling Loess Prairies
2 Lewis Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Platte Same Level IV ecoregion, within 5 miles Rolling Loess Prairies
2 Platte Same Level IV ecoregion, within 5 miles Missouri Alluvial Plain
2 Saint Charles Same Level IV ecoregion, within 5 miles River Hills
2 Scotland Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
4 Carroll Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Clinton Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Clinton Same Level IV ecoregion, within 10 miles Rolling Loess Prairies
4 Cole Same Level IV ecoregion, within 10 miles Osage/Gasconade Hills
4 Cooper Same Level IV ecoregion, within 10 miles Wooded Osage Plains
4 Franklin Same Level IV ecoregion, within 10 miles Eastern Ozark Border
4 Henry Same Level IV ecoregion, within 10 miles Wooded Osage Plains
4 Linn Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Livingston Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Macon Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Maries Same Level IV ecoregion, within 10 miles Osage/Gasconade Hills
4 Osage Same Level IV ecoregion, within 10 miles Osage/Gasconade Hills
4 Pulaski Same Level IV ecoregion, within 10 miles Osage/Gasconade Hills
4 Saint Clair Same Level IV ecoregion, within 10 miles Springfield Plateau
4 Sainte Genevieve Same Level IV ecoregion, within 10 miles Eastern Ozark Border
4 Saint Francois Same Level IV ecoregion, within 10 miles Eastern Ozark Border
5 Washington Same Level III ecoregion, within 10 miles Ozark Highlands
6 Dade Same Level IV ecoregion, within 20 miles Springfield Plateau
6 Dade Same Level IV ecoregion, within 20 miles Cherokee Plains
6 Holt Same Level IV ecoregion, within 20 miles Rolling Loess Prairies
6 Jasper Same Level IV ecoregion, within 20 miles Cherokee Plains
6 Knox Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Laclede Same Level IV ecoregion, within 20 miles Osage/Gasconade Hills
6 Mercer Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Morgan Same Level IV ecoregion, within 20 miles Wooded Osage Plains
6 Morgan Same Level IV ecoregion, within 20 miles Osage/Gasconade Hills
6 Phelps Same Level IV ecoregion, within 20 miles Osage/Gasconade Hills
7 Atchison Same Level III ecoregion, within 20 miles Western Corn Belt Plains
7 Moniteau Same Level III ecoregion, within 20 miles Ozark Highlands
8 Dallas Same Level IV ecoregion, within 30 miles Osage/Gasconade Hills
8 Greene Same Level IV ecoregion, within 30 miles Springfield Plateau
8 Lincoln Same Level IV ecoregion, within 30 miles River Hills
8 Marion Same Level IV ecoregion, within 30 miles Loess Flats and Till Plains
8 Shelby Same Level IV ecoregion, within 30 miles Loess Flats and Till Plains
9 Crawford Same Level III ecoregion, within 30 miles Ozark Highlands
9 Howard Same Level III ecoregion, within 30 miles Western Corn Belt Plains
10 Chariton Same Level IV ecoregion, adjacent county Rolling Loess Prairies
10 Chariton Same Level IV ecoregion, adjacent county Missouri Alluvial Plain
10 Chariton Same Level IV ecoregion, adjacent county Loess Flats and Till Plains

Linnaean Classification

Kingdom:
Animalia - Animals
Phylum:
Chordata - Chordates
Subphylum:
Vertebrata - Vertebrates
Class:
Reptilia Laurenti, 1768 - Reptiles
Order:
Squamata Oppel, 1811 - Lizards and Snakes
Family:
Natricidae Bonaparte, 1838 - Harmless Egg-retaining Snakes
Genus:
Tropidoclonion Cope, 1860 - Lined Snakes
Species:
Tropidoclonion lineatum (Hallowell, 1856) - Lined Snake

Recent Taxonomic Synonyms

(none)