Evidence found
1,318 records across 18 countries and territories, 1824–2026.
Steno bredanensis · GBIF taxon key 2440433
Where has the rough-toothed dolphin been recorded?
Steno bredanensis occurrence evidence comes from 1,318 records in 18 countries and territories, from 1824 to 2026. Most records come from Portugal.
- 1,318 records
- 18 places
- 51 years recorded
- Mammalia class
Observation evidence passport
Source coverage
CC0 GBIF Animalia occurrence facets, including country, month and year summaries.
Refreshed 2026-09-21. Inspect the taxon on GBIF.
What this means
The species has been recorded in the listed places in the stated source universe. Peak month: August.
4 months reach at least 10% of the peak facet count.
What this does not mean
repeated describes the record pattern, not a formal range, residency, abundance or conservation assessment.
A single record remains evidence of a recording, not proof that a population lives there.
Compare this animal’s observation pattern
When it is recorded
JFMAMJJASOND
Peak month: August. Records cluster in the months an animal is present and being looked for, so a summer peak can reflect observer effort as much as the animal.
Records over time
18242026
Recording effort has risen steeply almost everywhere since the 1990s, so a rising line usually shows more observers rather than more animals.
Where rough-toothed dolphin has been recorded
The countries below show where occurrence evidence exists for rough-toothed dolphin. They do not define a complete habitat range: survey effort differs by place, and historical or one-off records can appear alongside repeated presence.
| Place | Records | Share |
|---|---|---|
| Portugal | 1,108 | |
| United States | 137 | |
| Mexico | 24 | |
| ZZ | 10 | |
| Brazil | 9 | |
| Côte d'Ivoire | 3 | |
| Ecuador | 3 | |
| Nicaragua | 3 | |
| Netherlands | 2 | |
| Belize | 1 | |
| Spain | 1 | |
| Guatemala | 1 | |
| Japan | 1 | |
| New Zealand | 1 | |
| Oman | 1 | |
| Puerto Rico | 1 | |
| Senegal | 1 | |
| El Salvador | 1 |
Related animals
Others in the family Delphinidae.
common bottlenose dolphin
18,058 records
orca
12,965 records
pantropical spotted dolphin
2,528 records
Spinner Dolphin
1,761 records
long-finned pilot whale
1,363 records
Striped Dolphin
813 records
Commerson's dolphin
126 records
Indian Ocean bottlenose dolphin
117 records
Record pattern: repeated
Repeated records across many years and months. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.
Repeated records across many years and months. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.