Florida mammals

Rough-toothed dolphin in Florida

Steno bredanensis

Native to Florida SNR Unranked in Florida

Not listed as nonindigenous in Florida by USGS NAS; native to its Florida range.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

Rough-toothed dolphin in Florida, by the numbers

Occasional in Florida 57th most recorded of 116 mammals logged in Florida

46 occurrence records
1 with iNaturalist photos
Dec 16, 2019 Last seen in Florida

46 total records count every Florida occurrence from GBIF and iNaturalist; the monthly chart covers the 45 records with a full observation date.

When to look for the Rough-toothed dolphin in Florida

Most sightings fall in April to May.

45 Florida occurrence records (iNaturalist and GBIF) by month of year. Shows when the species is recorded, not a guarantee of presence.

Monthly Florida records (table)
MonthRecords
January1
February3
March1
April12
May13
June1
July0
August1
September0
October3
November5
December5

Monthly rough-toothed dolphin occurrence records (iNaturalist and GBIF) in Florida.

Seasonality

Year-round in Florida, with recorded sightings peaking in April–May.

Occurrence map

Where Rough-toothed dolphin has been recorded in Florida

46 records mapped · zoom and drag to explore

45 Florida records mapped

Where it's recorded in Florida

CountyRecords
Pinellas County 9
Walton County 1
Gulf County 1
Franklin County 1
Broward County 1
Indian River County 1
St. Lucie County 1
Santa Rosa County 1
Volusia County 1
Taylor County 1
Hillsborough County 1
Other localities 27

The complete county distribution, spread across 11 Florida counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Florida holds 46 recorded rough-toothed dolphin encounters, and all but one come from GBIF’s survey and stranding data rather than live sightings posted to iNaturalist. That split points to a species detected mostly through strandings and offshore research trips, not casual beach or boat encounters. It’s native to Florida’s waters, and NatureServe hasn’t assigned the state a numeric rank (SNR), though the global rank sits at G4, apparently secure.

Records climb into spring, with May producing the most reports (13) and April close behind (12). Rough-toothed dolphins travel far offshore in small groups, so this bump likely reflects when survey effort or stranding response is heaviest, not when the animals actually gather near the coast.

Occurrence data from GBIF.

More mammals in Florida in the atlas

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • NatureServe ExplorerCC-BYthe state conservation rank
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap