Rough-toothed dolphin
Steno bredanensis (G. Cuvier in Lesson, 1828)
LCLeast Concernwhales and dolphins
The rough-toothed dolphin (Steno bredanensis) is a species in the family Delphinidae, order Cetacea. Recorded adults weigh 118.2 kg to 130 kg and live up to 32 years. Its IUCN Red List status is Least Concern.
Quick facts about the rough-toothed dolphin
- Weight
- 118.2 kg – 130 kgsrc for Weight
- Length
- Not recorded
- Lifespan
- 32 yearssrc for Lifespan
- Diet
- Piscivoresrc for Diet
- Longest recorded lifespan
- 48 years
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 365 dayssrc for Gestation
- Young per litter or clutch
- Not recorded
- Age at maturity
- 7.5 years – 9.99 yearssrc for Age at maturity
- Active
- Day and night (cathemeral)src for Active
- Lifestyle
- Marinesrc for Lifestyle
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the rough-toothed dolphin live?
Not recorded
What is the rough-toothed dolphin?
The rough-toothed dolphin (Steno bredanensis) is a species of dolphin that lives in deep warm and tropical waters around the world. It was first described by Georges Cuvier in 1823. The genus name Steno, of which it is the only member, comes from the Greek for 'narrow', referring to the animal's beak, which is a diagnostic characteristic of this dolphin. Its specific name honours van Breda, who studied Cuvier's writings. There are no recognised subspecies.
From the Wikipedia article “Rough-toothed dolphin” (en.wikipedia.org/w/index.php?title=Rough-toothed_dolphin&oldid=1379928597), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the rough-toothed dolphin endangered?
The rough-toothed dolphin is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species. What the categories mean.
How is the rough-toothed dolphin classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderCetacea
- familyDelphinidae
- genusSteno
- SpeciesSteno bredanensis (G. Cuvier in Lesson, 1828)
Synonyms Delphinorhynchus bredanensis, Delphinus bredanensis, Delphinus bredanensis, Delphinus chamissonis, Delphinus compressus, Delphinus oxyrhynchus, Delphinus perspicillatus, Delphinus planiceps, Delphinus reinwardtii, Delphinus rostratus, Steno bradanensis, Steno compressus, Steno frontatus, Steno perspicillatus, Steno perspicillatus, Steno rostratus, Steno rostratus, Steno rostratus
Other names and names in other languages (55)
- Black porpoiseEnglish
- growwetand-dolfynAfrikaans
- دلفين خشن الأسنانArabic
- Dofí rostratCatalan
- delfín drsnozubýCzech
- RauzahndelfinGerman
- Rauzahn-DelfinGerman
- Στενόρυγχο δελφίνιGreek
- estenoSpanish
- delfin bastardoSpanish
- delfin de dientes asperosSpanish
- delfín de dientes rugososSpanish
- delfín de hocico estrechoSpanish
- delfín de pico largoSpanish
- Delfín dientes rugososSpanish
- mala toninaSpanish
- rosohammasdelfiiniFinnish
- sténoFrench
- dauphin à bec étroitFrench
- dauphin a dents rudesFrench
- dauphin à long becFrench
- delphinorhynche long-becFrench
- Sténo à rostre étroitFrench
- דולפין תלום-שןHebrew
- Barázdásfogú delfinHungarian
- lumba-lumba bergigi kasarIndonesian
- Lumba-lumba Gigi-kasarIndonesian
- NefhöfrungurIcelandic
- stenoItalian
- シワハイルカJapanese
- shiwaha irukaJapanese
- 뱀머리돌고래Korean
- baem-meori-dolgoraiKorean
- raukšliadantis delfinasLithuanian
- NebbdelfinNorwegian Bokmål
- snaveldolfijnDutch
- stroppetannet delfinNorwegian
- steno długonosyPolish
- Delfin długonosyPolish
- golfinho de dentes rugososPortuguese
- CaldeirãoPortuguese
- Golfinho-de-dentes-rugososPortuguese
- grebnezubyi delfinRussian
- Крупнозубый дельфинRussian
- brazdastozobi delfinSlovenian
- näbbdelfinSwedish
- โลมาฟันห่างThai
- plaloma chudThai
- plaloma fan hangThai
- pürüzlü dişli yunusTurkish
- Гребнезубий дельфінUkrainian
- морщиністозубий дельфінUkrainian
- Дельфін крупно-гребенезубийUkrainian
- 糙齒海豚Chinese
- 糙齿海豚Chinese
Catalogue of LifeWikipediaiNaturalistTAXREFWikidataWoRMSIUCN Red List
Relatives of the rough-toothed dolphin
Other species in the same family Delphinidae.
Orca
Orcinus orca
Common bottlenose dolphin
Tursiops truncatus
Common dolphin
Delphinus delphis
Risso's dolphin
Grampus griseus
Irrawaddy dolphin
Orcaella brevirostris
Striped dolphin
Stenella coeruleoalba
CompareRough-toothed dolphin vs OrcaRough-toothed dolphin vs Common bottlenose dolphinRough-toothed dolphin vs Common dolphinRough-toothed dolphin vs Risso's dolphin
Common questions
Answered only where our data holds the answer.
How big is the rough-toothed dolphin?
An adult rough-toothed dolphin weighs 118.2 kg – 130 kg, according to values recorded on Wikidata.
Is the rough-toothed dolphin endangered?
The rough-toothed dolphin is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
How long does the rough-toothed dolphin live?
The rough-toothed dolphin has a recorded lifespan of 32 years.
How long is the rough-toothed dolphin pregnant?
The recorded gestation period is 365 days.
What kind of animal is the rough-toothed dolphin?
The rough-toothed dolphin (Steno bredanensis) belongs to the family Delphinidae in the order Cetacea.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1 - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Rough-toothed dolphin (Steno bredanensis). Retrieved from https://creaturedata.com/animals/rough-toothed-dolphin
“Rough-toothed dolphin (Steno bredanensis).” CreatureData, 2026, https://creaturedata.com/animals/rough-toothed-dolphin.
@misc{rough_toothed_dolphin_2026,
title = {Rough-toothed dolphin (Steno bredanensis)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/rough-toothed-dolphin},
note = {Data as of 2026-11-11}
}