Maps
Locality Map
Locality map for Siren nettingi (Western Lesser Siren).
Map created 15 April 2026.
County Map
County map for Siren nettingi (Western Lesser Siren).
Map created 15 April 2026.
Historical Locality Map
Historical locality map for Siren nettingi (Western Lesser Siren). 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 Siren nettingi (Western Lesser Siren). 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 locality map for Siren nettingi (Western Lesser Siren).
Map created 15 April 2026.
Natural Divisions Locality Map
Natural Divisions and Sections locality map for Siren nettingi (Western Lesser Siren).
Map created 15 April 2026.
Major Watersheds Locality Map
Major Watersheds locality map for Siren nettingi (Western Lesser Siren).
Map created 15 April 2026.
Level I Ecoregion Locality Map
Level I Ecoregion locality map for Siren nettingi (Western Lesser Siren).
Map created 15 April 2026.
Level II Ecoregion Locality Map
Level II Ecoregion locality map for Siren nettingi (Western Lesser Siren).
Map created 15 April 2026.
Level III Ecoregion Locality Map
Level III Ecoregion locality map for Siren nettingi (Western Lesser Siren).
Map created 15 April 2026.
Level IV Ecoregion Locality Map
Level IV Ecoregion locality map for Siren nettingi (Western Lesser Siren).
Map created 15 April 2026.
Native Status
Siren nettingi (Western Lesser Siren) is native to Missouri.
Collection Summary
Siren nettingi (Western Lesser Siren) has a total of 110 valid, non-duplicated collections representing 19 counties and 44 localities. There are a total of 43 collectors and 57 collection dates for the species. This results in a total of 60 expeditions for the species, a measure of unique date / collector(s) combinations. The earliest collection year for the species in Missouri is 1899 and its most recent collection year is 2020. The earliest and latest collection dates (independent of earliest and most recent collection years) are January 15 and December 25, respectively. If you have a new record to report, read the New Records section of the FAQ.
Collection Summary by County
| County | Localities | Collections | Collectors | Dates | Expeditions | Earliest Year | Latest Year | |
|---|---|---|---|---|---|---|---|---|
 | Bollinger | 2 | 7 | 6 | 7 | 7 | 1961 | 1986 |
| Butler | 4 | 24 | 5 | 5 | 5 | 1899 | 1971 |
| Cape Girardeau | 1 | 1 | 2 | 1 | 1 | 1976 | 1976 |
| Carter | 1 | 3 | 1 | 1 | 1 | 1970 | 1970 |
| Dunklin | 1 | 1 | 1 | 1 | 1 | 1957 | 1957 |
| Howell | 1 | 1 | 1 | 1 | 1 | 1988 | 1988 |
| Jefferson | 1 | 1 | 1 | 1 | 1 | ||
| Lincoln | 3 | 4 | 4 | 4 | 4 | 1910 | 2020 |
| Mississippi | 2 | 6 | 3 | 4 | 5 | 1934 | 1973 |
| New Madrid | 1 | 1 | 1 | 1 | 1 | 1961 | 1961 |
| Pemiscot | 1 | 2 | 1 | 1 | 1 | 1961 | 1961 |
| Pike | 6 | 18 | 1 | 13 | 13 | 1996 | 1999 |
| Ripley | 1 | 1 | 3 | 1 | 1 | 1985 | 1985 |
| Saint Charles | 1 | 1 | 1 | 1 | 1 | 1986 | 1986 |
| Sainte Genevieve | 1 | 1 | 1 | 1 | 1 | 2020 | 2020 |
| Saint Louis | 2 | 2 | 2 | 2 | 2 | 1908 | 1908 |
| Scott | 1 | 1 | 1 | 1 | 1 | 1986 | 1986 |
| Stoddard | 7 | 23 | 8 | 9 | 9 | 1967 | 2000 |
| Wayne | 5 | 10 | 8 | 5 | 5 | 1973 | 2011 |
Potential County Records
| Likelihood | County | Rationale | Ecoregion / Watershed | |
|---|---|---|---|---|
 | 2 | Perry | Same Level IV ecoregion, within 5 miles | Middle Mississippi Alluvial Plain |
| 2 | Ralls | Same Level IV ecoregion, within 5 miles | River Hills |
| 2 | Ralls | Same Level IV ecoregion, within 5 miles | Upper Mississippi Alluvial Plain |
| 4 | Franklin | Same Level IV ecoregion, within 10 miles | Eastern Ozark Border |
| 4 | Ozark | Same Level IV ecoregion, within 10 miles | Central Plateau |
| 5 | Reynolds | Same Level III ecoregion, within 10 miles | Ozark Highlands |
 | 6 | Madison | Same Level IV ecoregion, within 20 miles | Black River Hills Border |
| 6 | Marion | Same Level IV ecoregion, within 20 miles | River Hills |
| 6 | Marion | Same Level IV ecoregion, within 20 miles | Upper Mississippi Alluvial Plain |
| 6 | Oregon | Same Level IV ecoregion, within 20 miles | Central Plateau |
| 7 | Douglas | Same Level III ecoregion, within 20 miles | Ozark Highlands |
| 7 | Iron | Same Level III ecoregion, within 20 miles | Ozark Highlands |
| 7 | Shannon | Same Level III ecoregion, within 20 miles | Ozark Highlands |
| 7 | Warren | Same Level III ecoregion, within 20 miles | Interior River Valleys and Hills |
 | 8 | Audrain | Same Level IV ecoregion, within 30 miles | River Hills |
| 8 | Monroe | Same Level IV ecoregion, within 30 miles | River Hills |
| 8 | Montgomery | Same Level IV ecoregion, within 30 miles | River Hills |
| 8 | Saint Francois | Same Level IV ecoregion, within 30 miles | Eastern Ozark Border |
| 8 | Texas | Same Level IV ecoregion, within 30 miles | Central Plateau |
| 9 | Washington | Same Level III ecoregion, within 30 miles | Ozark Highlands |
Linnaean Classification
- Kingdom:
- Animalia - Animals
- Phylum:
- Chordata - Chordates
- Subphylum:
- Vertebrata - Vertebrates
- Class:
- Amphibia Gray, 1825 - Amphibians
- Order:
- Caudata Scopoli, 1777 - Salamanders
- Family:
- Sirenidae Gray, 1825 - Sirens
- Genus:
- Siren Österdam, 1766 - Sirens
- Species:
- Siren nettingi Goin, 1942 - Western Lesser Siren
Recent Taxonomic Synonyms
- Siren intermedia