Animalia > Chordata > Mammalia > Cetacea > Delphinidae > Steno > Steno bredanensis

Steno bredanensis (Rough-toothed Dolphin)

Synonyms: Delphinus bredanensis; Delphinus compressus; Delphinus perspicillatus; Delphinus rostratus; Steno perspicillatus
Language: Spanish

Wikipedia Abstract

The rough-toothed dolphin (Steno bredanensis) is a species of dolphin that can be found in deep warm and tropical waters around the world. The species was first described by Georges Cuvier in 1823. The genus name Steno, of which this species is the only member, comes from the Greek for 'narrow', referring to the animal's beak — which is a diagnostic characteristic of the species. The specific name honours van Breda, who studied Cuvier's writings. There are no recognised subspecies.
View Wikipedia Record: Steno bredanensis

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 7.44
EDGE Score: 2.13


Adult Weight [2]  251.33 lbs (114.00 kg)
Female Maturity [2]  10 years
Diet [3]  Carnivore (Invertebrates), Piscivore
Diet - Fish [3]  60 %
Diet - Invertibrates [3]  40 %
Forages - Marine [3]  100 %
Maximum Longevity [2]  32 years
Water Biome [1]  Reef, Coastal

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Alto Golfo de California y Delta del Rio Colorado Biosphere Reserve VI 2320468 Sonora, Mexico  
Archipelago de Colon Biosphere Reserve 34336011 Galapagos Islands, Ecuador  
Everglades and Dry Tortugas Biosphere Reserve   Florida, United States  
Isla Mujeres, Punta Cancun y Punta Nizuc National Park II 21428 Quintana Roo, Mexico    
Point Reyes National Seashore II 27068 California, United States
South Atlantic Coastal Plain Biosphere Reserve 20317 South Carolina, United States  

Prey / Diet

Atherinops affinis (Topsmelt silverside)[4]
Atherinopsis californiensis (Jack silverside)[4]
Doryteuthis pleii (arrow squid)[5]
Octopus vulgaris (common octopus)[6]
Thysanoteuthis rhombus (diamond squid)[5]
Trichiurus lepturus (Atlantic Cutlassfish)[6]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Alepisaurus ferox (Wolffish)1
Arctocephalus australis (South American Fur Seal)1
Coryphaena hippurus (Mahi-mahi)1
Feresa attenuata (Pygmy Killer Whale)1
Katsuwonus pelamis (White bonito)1
Makaira mazara (black spearfish)1
Makaira nigricans (Ocean guard)1
Orcinus orca (Killer Whale)1
Physeter macrocephalus (Sperm Whale)1
Pontoporia blainvillei (Franciscana)1
Prionace glauca (Tribon blou)1
Pseudorca crassidens (False Killer Whale)1
Sphyrna zygaena (Smooth hammerhead shark)1
Stenella attenuata (Pantropical Spotted Dolphin)1
Stenella frontalis (Atlantic Spotted Dolphin)1
Thunnus albacares (Yellowfin-tuna)1
Thunnus obesus (Tuna)1
Tursiops truncatus (Bottlenosed Dolphin)1
Xiphias gladius (Swordfish)1


Parasitized by 
Anisakis simplex[7]
Anisakis typica[7]
Bolbosoma capitatum[7]
Brachycladium palliatum[7]
Braunina cordiformis[7]
Pholeter gastrophilus[7]
Strobilocephalus triangularis[7]
Synthesium tursionis[7]
Tetrabothrius forsteri[7]
Tetrabothrius innominatus[7]
Trigonocotyle prudhoei[7]

Range Map

East Pacific; Eastern Atlantic Ocean; Indo-West Pacific; Western Atlantic Ocean;



Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
4Szoboszlai AI, Thayer JA, Wood SA, Sydeman WJ, Koehn LE (2015) Forage species in predator diets: synthesis of data from the California Current. Ecological Informatics 29(1): 45-56. Szoboszlai AI, Thayer JA, Wood SA, Sydeman WJ, Koehn LE (2015) Data from: Forage species in predator diets: synthesis of data from the California Current. Dryad Digital Repository.
5CephBase - Cephalopod (Octopus, Squid, Cuttlefish and Nautilus) Database
6Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
7Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access