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Ambystoma texanum (Matthes, 1855) - Small-mouthed Salamander

Maps

Locality Map

Locality map for Ambystoma texanum (Small-mouthed Salamander)
Locality map for Ambystoma texanum (Small-mouthed Salamander).
Map created 15 April 2026.

County Map

County map for Ambystoma texanum (Small-mouthed Salamander)
County map for Ambystoma texanum (Small-mouthed Salamander).
Map created 15 April 2026.

Historical Locality Map

Historical locality map for Ambystoma texanum (Small-mouthed Salamander)
Historical locality map for Ambystoma texanum (Small-mouthed Salamander). 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 Ambystoma texanum (Small-mouthed Salamander)
Historical county map for Ambystoma texanum (Small-mouthed Salamander). 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 Ambystoma texanum (Small-mouthed Salamander)
Ecological Drainage Units locality map for Ambystoma texanum (Small-mouthed Salamander).
Map created 15 April 2026.

Natural Divisions Locality Map

Natural Divisions locality map for Ambystoma texanum (Small-mouthed Salamander)
Natural Divisions and Sections locality map for Ambystoma texanum (Small-mouthed Salamander).
Map created 15 April 2026.

Major Watersheds Locality Map

Major watersheds map for Ambystoma texanum (Small-mouthed Salamander)
Major Watersheds locality map for Ambystoma texanum (Small-mouthed Salamander).
Map created 15 April 2026.

Level I Ecoregion Locality Map

Level I Ecoregions map for Ambystoma texanum (Small-mouthed Salamander)
Level I Ecoregion locality map for Ambystoma texanum (Small-mouthed Salamander).
Map created 15 April 2026.

Level II Ecoregion Locality Map

Level II Ecoregions map for Ambystoma texanum (Small-mouthed Salamander)
Level II Ecoregion locality map for Ambystoma texanum (Small-mouthed Salamander).
Map created 15 April 2026.

Level III Ecoregion Locality Map

Level III Ecoregions map for Ambystoma texanum (Small-mouthed Salamander)
Level III Ecoregion locality map for Ambystoma texanum (Small-mouthed Salamander).
Map created 15 April 2026.

Level IV Ecoregion Locality Map

Level IV Ecoregions map for Ambystoma texanum (Small-mouthed Salamander)
Level IV Ecoregion locality map for Ambystoma texanum (Small-mouthed Salamander).
Map created 15 April 2026.

Native Status

Ambystoma texanum (Small-mouthed Salamander) is native to Missouri.

Collection Summary

Ambystoma texanum (Small-mouthed Salamander) has a total of 453 valid, non-duplicated collections representing 64 counties and 186 localities. There are a total of 123 collectors and 194 collection dates for the species. This results in a total of 213 expeditions for the species, a measure of unique date / collector(s) combinations. The earliest collection year for the species in Missouri is 1893 and its most recent collection year is 2025. The earliest and latest collection dates (independent of earliest and most recent collection years) are January 15 and November 28, respectively. If you have a new record to report, read the New Records section of the FAQ.

Collection Summary by County

Collection summary for Ambystoma texanum (Small-mouthed Salamander) 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 1 1 1 1 1 2019 2019
Andrew 2 3 2 2 2 1968 1977
Audrain 1 2 2 1 1 1997 1997
Barton 2 2 4 2 2 1983 2012
Bates 1 2 1 1 1 1963 1963
Benton 1 1 2 1 1
Bollinger 3 11 4 7 7 1962 1974
Boone 12 16 9 14 14 1911 2025
Butler 10 17 9 8 9 1906 1970
Callaway 10 27 11 9 10 1948 2013
Cape Girardeau 3 7 4 4 4 1962 1995
Cass 2 3 2 2 2 1964 1993
Chariton 2 4 3 2 2 1941 1941
Clark 1 1 2 1 1 2019 2019
Cole 1 1 1 1 1 1983 1983
Cooper 1 1 1 1 1 2000 2000
Daviess 1 1 1 1 1 1976 1976
Dunklin 3 8 3 4 4 1962 1964
Franklin 1 1 1 1 1 1971 1971
Gasconade 1 1 1 1 1 2015 2015
Gentry 2 3 1 3 3 2001 2001
Greene 1 1 1 1 1 1993 1993
Harrison 1 1 1 1 1 2002 2002
Henry 2 7 1 2 2 1938 1938
Holt 13 31 3 9 9 1966 1980
Howard 1 2 3 1 1 1979 1979
Jackson 6 9 2 5 5 1937 1978
Jasper 1 1 1 1 1 2020 2020
Jefferson 3 6 5 4 4 1903 2018
Johnson 13 19 17 14 18 1909 1997
Lafayette 3 3 3 3 3 1960 1993
Lawrence 1 1 1 1 1 2004 2004
Lewis 2 2 2 2 2 1996 2008
Lincoln 1 2 1 2 2 1999 2013
Linn 2 3 4 2 2 1980 1984
Macon 3 5 3 4 4 1967 2019
Marion 1 1 1 1 1 2001 2001
Mississippi 4 14 6 5 5 1962 1988
Moniteau 1 1 1 1 1 2015 2015
Montgomery 1 3 2 2 2 1901 1901
New Madrid 3 18 3 4 4 1932 1962
Newton 1 1 2 1 1 2021 2021
Nodaway 6 8 6 6 6 1967 2015
Osage 1 1 1 1 1 1976 1976
Pemiscot 2 2 2 2 2 1938 1962
Pike 6 6 2 6 6 1938 1999
Platte 1 1 1 1 1 1992 1992
Polk 1 1 1 1 1 1999 1999
Putnam 2 2 1 1 1 1992 1992
Ralls 1 2 1 1 1 1997 1997
Randolph 3 6 3 5 5 1994 2001
Ripley 2 29 2 2 2 1964 1966
Saint Charles 2 7 4 5 6 1900 1934
Saint Clair 1 1 1 1 1 1938 1938
Saint Francois 1 1 1 1 1 1995 1995
Saint Louis 9 14 10 9 11 1893 2009
Saline 2 2 2 2 2 1998 2022
Scotland 1 2 2 2 2 2003 2003
Scott 1 1 1 1 1 1962 1962
Shelby 1 2 1 1 1 1998 1998
Stoddard 12 114 23 31 36 1899 2022
Vernon 1 1 1 1 1 2012 2012
Washington 1 1 1 1 1 1942 1942
Wayne 3 4 5 4 4 1953 2000

Potential County Records

Potential counties for Ambystoma texanum (Small-mouthed Salamander). 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 Carroll Same Level IV ecoregion, within 5 miles Missouri Alluvial Plain
2 Carroll Same Level IV ecoregion, within 5 miles Rolling Loess Prairies
2 Carroll Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Clay Same Level IV ecoregion, within 5 miles Missouri Alluvial Plain
2 Dade Same Level IV ecoregion, within 5 miles Springfield Plateau
2 De Kalb Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Grundy Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Knox Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Livingston Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Pettis Same Level IV ecoregion, within 5 miles Wooded Osage Plains
2 Sainte Genevieve Same Level IV ecoregion, within 5 miles St. Francois Knobs and Basins
2 Schuyler Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
3 Atchison Same Level III ecoregion, within 5 miles Western Corn Belt Plains
4 Buchanan Same Level IV ecoregion, within 10 miles Rolling Loess Prairies
4 Christian Same Level IV ecoregion, within 10 miles Springfield Plateau
4 Hickory Same Level IV ecoregion, within 10 miles Osage/Gasconade Hills
4 Mercer Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Monroe Same Level IV ecoregion, within 10 miles Claypan Prairie
4 Ray Same Level IV ecoregion, within 10 miles Missouri Alluvial Plain
4 Ray Same Level IV ecoregion, within 10 miles Rolling Loess Prairies
4 Webster Same Level IV ecoregion, within 10 miles Springfield Plateau
6 Barry Same Level IV ecoregion, within 20 miles Springfield Plateau
6 Caldwell Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Camden Same Level IV ecoregion, within 20 miles Osage/Gasconade Hills
6 Cedar Same Level IV ecoregion, within 20 miles Osage/Gasconade Hills
6 Cedar Same Level IV ecoregion, within 20 miles Springfield Plateau
6 Cedar Same Level IV ecoregion, within 20 miles Cherokee Plains
6 Clinton Same Level IV ecoregion, within 20 miles Rolling Loess Prairies
6 Crawford Same Level IV ecoregion, within 20 miles Central Plateau
6 Dallas Same Level IV ecoregion, within 20 miles Central Plateau
6 Douglas Same Level IV ecoregion, within 20 miles Springfield Plateau
6 Iron Same Level IV ecoregion, within 20 miles St. Francois Knobs and Basins
6 Madison Same Level IV ecoregion, within 20 miles St. Francois Knobs and Basins
6 Maries Same Level IV ecoregion, within 20 miles Osage/Gasconade Hills
6 McDonald Same Level IV ecoregion, within 20 miles Springfield Plateau
6 Miller Same Level IV ecoregion, within 20 miles River Hills
6 Morgan Same Level IV ecoregion, within 20 miles Osage/Gasconade Hills
6 Morgan Same Level IV ecoregion, within 20 miles Prairie Ozark Border
6 Perry Same Level IV ecoregion, within 20 miles Middle Mississippi Alluvial Plain
6 Perry Same Level IV ecoregion, within 20 miles River Hills
6 Stone Same Level IV ecoregion, within 20 miles Springfield Plateau
6 Sullivan Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Warren Same Level IV ecoregion, within 20 miles River Hills
6 Worth Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Worth Same Level IV ecoregion, within 20 miles Rolling Loess Prairies
8 Phelps Same Level IV ecoregion, within 30 miles Osage/Gasconade Hills
8 Phelps Same Level IV ecoregion, within 30 miles Central Plateau
8 Reynolds Same Level IV ecoregion, within 30 miles St. Francois Knobs and Basins
8 Wright Same Level IV ecoregion, within 30 miles Springfield Plateau
9 Laclede Same Level III ecoregion, within 30 miles Ozark Highlands
9 Taney Same Level III ecoregion, within 30 miles Ozark Highlands
10 Oregon Same Level IV ecoregion, adjacent county Central Plateau
11 Carter Same Level III ecoregion, adjacent county Ozark Highlands

Linnaean Classification

Kingdom:
Animalia - Animals
Phylum:
Chordata - Chordates
Subphylum:
Vertebrata - Vertebrates
Class:
Amphibia Gray, 1825 - Amphibians
Order:
Caudata Scopoli, 1777 - Salamanders
Family:
Ambystomatidae Gray, 1850 - Mole Salamanders
Genus:
Ambystoma Tschudi, 1838 - Mole Salamanders
Species:
Ambystoma texanum (Matthes, 1855) - Small-mouthed Salamander

Recent Taxonomic Synonyms

(none)