Stenella

Genus of mammals

Stenella Temporal range: Neogene–Present PreꞒ Ꞓ O S D C P T J K Pg N

Striped dolphin
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Infraorder:	Cetacea
Family:	Delphinidae
Subfamily:	Delphininae
Genus:	Stenella Gray, 1866
Type species
Steno attenuatus ^[1] Gray, 1846
Species
S. attenuata S. frontalis S. longirostris S. clymene S. coeruleoalba S. rayi

Stenella is a genus of marine mammals in Delphinidae, the family informally known as the oceanic dolphins.^[2]^[3]^[4]

Species

Currently, five species are recognised in this genus:^[3]

Common Name	Scientific name	Distribution
Pantropical spotted dolphin	S. attenuata	eastern Pacific Ocean
Atlantic spotted dolphin	S. frontalis	tropical areas of the Atlantic Ocean. I
Spinner dolphin	S. longirostris	Pacific Ocean
Clymene dolphin	S. clymene	Atlantic Ocean.
Striped dolphin	S. coeruleoalba	North and South Atlantic Oceans, including the Mediterranean

S. rayi was a species of this genus found in North Carolina, in the early Pliocene.^[5]

The common name for species in this genus is the "spotted dolphins" or the "bridled dolphins".^[2]^[3] They are found in temperate and tropical seas all around the world.^[2]^[3] Individuals of several species begin their lives spotless and become steadily more covered in darker spots as they get older.^[2]^[3]

The genus name comes from the Greek stenos meaning narrow.^[2]^[3] It was coined by John Gray in 1866 when he intended it as a subgenus of Steno.^[2] Modern taxonomists recognise two genera.^[2]^[3]

The clymene dolphin (S. clymene) is the only confirmed case of hybrid speciation in marine mammals, descending from the spinner dolphin (S. longirostris) and the striped dolphin (S. coeruleoalba).^[6]

Stenella dolphins tend to be more active during nighttime and spend their daytime resting. Although these dolphins are supposed to spend 60% of their daytime resting, they happen to be exposed to human activities for 80% of their day. These patterns of sleep deprivation can have negative impact on their resting habit and leads to decline in their population size.^[7]

References

Wikispecies has information related to Stenella.

^ Wilson, D. E.; Reeder, D. M., eds. (2005). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. ISBN 978-0-8018-8221-0. OCLC 62265494.
^ ^a ^b ^c ^d ^e ^f ^g Tinker, Spencer Wilkie (1988). Whales of the World. Brill Archive. p. 310. ISBN 9780935848472.
^ ^a ^b ^c ^d ^e ^f ^g Klinowska, Margaret; Justin Cooke (1991). Dolphins, Porpoises and Whales of the World. IUCN. p. 429. ISBN 9782880329365.
^ Walker, Ernest Pillsbury; Ronald M. Nowak; John E. Heyning; Randall R. Reeves; Brent S. Stewart; John E. Heyning; Randall R. Reeves; Brent S. Stewart (2003). Walker's Marine Mammals of the World. JHU Press. p. 264. ISBN 9780801873430.
^ Bianucci, Giovanni (May 2013). "Septidelphis morii , n. gen. et sp., from the Pliocene of Italy: new evidence of the explosive radiation of true dolphins (Odontoceti, Delphinidae)". Journal of Vertebrate Paleontology. 33 (3): 722–740. doi:10.1080/02724634.2013.744757. ISSN 0272-4634.
^ Amaral, Ana R.; Lovewell, Gretchen; Coelho, Maria M.; Amato, George; Rosenbaum, Howard C. (2014). "Hybrid Speciation in a Marine Mammal: The Clymene Dolphin (Stenella clymene)". PLOS ONE. 9 (1): e83645. doi:10.1371/journal.pone.0083645. PMC 3885441. PMID 24421898.
^ Tyne, Julian A.; Christiansen, Fredrik; Heenehan, Heather L.; Johnston, David W.; Bejder, Lars (2018). "Chronic exposure of Hawaii Island spinner dolphins ( Stenella longirostris ) to human activities". Royal Society Open Science. 5 (10): 171506. doi:10.1098/rsos.171506. ISSN 2054-5703. PMC 6227997. PMID 30473795.

Extant Cetacea species

Kingdom Animalia
Phylum Chordata
Class Mammalia
Infraclass Eutheria
Superorder Laurasiatheria
Order Artiodactyla
Suborder Whippomorpha

Parvorder Mysticeti (Baleen whales)

Balaenidae

Balaena	Bowhead whale (B. mysticetus)
Eubalaena (Right whales)	Southern right whale (E. australis) North Atlantic right whale (E. glacialis) North Pacific right whale (E. japonica)

Balaenopteridae
(Rorquals)

Balaenoptera	Common minke whale (B. acutorostrata) Antarctic minke whale (B. bonaerensis) Sei whale (B. borealis) Bryde's whale (B. brydei) Pygmy Bryde's whale (B. edeni) Blue whale (B. musculus) Omura's whale (B. omurai) Fin whale (B. physalus) Rice's whale (B. ricei)
Eschrichtius	Gray whale (E. robustus)
Megaptera	Humpback whale (M. novaeangliae)

Cetotheriidae

Caperea	Pygmy right whale (C. marginata)

Parvorder Odontoceti (Toothed whales)

Delphinidae
(Oceanic dolphins)

Cephalorhynchus	Commerson's dolphin (C. commersonii) Chilean dolphin (C. eutropia) Heaviside's dolphin (C. heavisidii) Hector's dolphin (C. hectori)
Delphinus	Common dolphin (D. delphis)
Feresa	Pygmy killer whale (F. attenuata)
Globicephala (Pilot whales)	Short-finned pilot whale (G. macrorhynchus) Long-finned pilot whale (G. melas)
Grampus	Risso's dolphin (G. griseus)
Lagenodelphis	Fraser's dolphin (L. hosei)
Lagenorhynchus	White-beaked dolphin (L. albirostris) Atlantic white-sided dolphin (L. acutus) Peale's dolphin (L. australis) Hourglass dolphin (L. cruciger) Pacific white-sided dolphin (L. obliquidens) Dusky dolphin (L. obscurus)
Lissodelphis (Right whale dolphins)	Northern right whale dolphin (L. borealis) Southern right whale dolphin (L. peronii)
Orcaella	Irrawaddy dolphin (O. brevirostris) Australian snubfin dolphin (O. heinsohni)
Orcinus	Orca or killer whale (O. orca)
Peponocephala	Melon-headed whale (P. electra)
Pseudorca	False killer whale (P. crassidens)
Sotalia	Tucuxi (S. fluviatilis) Guiana dolphin (S. guianensis)
Sousa (Humpback dolphins)	Indo-Pacific humpback dolphin (S. chinensis) Indian Ocean humpback dolphin (S. plumbea) Australian humpback dolphin (S. sahulensis) Atlantic humpback dolphin (S. teuszii)
Stenella	Pantropical spotted dolphin (S. attenuata) Clymene dolphin (S. clymene) Striped dolphin (S. coeruleoalba) Atlantic spotted dolphin (S. frontalis) Spinner dolphin (S. longirostris)
Steno	Rough-toothed dolphin (S. bredanensis)
Tursiops (Bottlenose dolphins)	Indo-Pacific bottlenose dolphin (T. aduncus) Burrunan dolphin (T. australis) Tamanend's bottlenose dolphin (T. erebennus) Common bottlenose dolphin (T. truncatus)

Monodontidae

Delphinapterus	Beluga whale (D. leucas)
Monodon	Narwhal (M. monoceros)

Phocoenidae
(Porpoises)

Neophocoena (Finless porpoises)	Indo-Pacific finless porpoise (N. phocaenoides) Yangtze finless porpoise (N. asiaeorientalis)
Phocoena	Spectacled porpoise (P. dioptrica) Harbour porpoise (P. phocoena) Vaquita (P. sinus) Burmeister's porpoise (P. spinipinnis)
Phocoenoides	Dall's porpoise (P. dalli)

Physeteridae

Physeter	Sperm whale (P. macrocephalus)

Kogiidae

Kogia	Pygmy sperm whale (K. breviceps) Dwarf sperm whale (K. simus)

Iniidae

Inia	Araguaian river dolphin (I. araguaiaensis) Bolivian river dolphin (I. boliviensis) Amazon river dolphin (I. geoffrensis)

Lipotidae

Lipotes	Baiji (L. vexillifer)

Platanistidae

Platanista	Ganges river dolphin (P. gangetica) Indus river dolphin (P. minor)

Pontoporiidae

Pontoporia	La Plata dolphin (P. blainvillei)

Ziphiidae
(Beaked whales)

Berardius	Arnoux's beaked whale (B. arnuxii) Baird's beaked whale (B. bairdii) Sato's beaked whale (B. minimus)
Hyperoodon (Bottlenose whales)	Northern bottlenose whale (H. ampullatus) Southern bottlenose whale (H. planifrons)
Indopacetus	Tropical bottlenose whale (I. pacificus)
Mesoplodon (Mesoplodont whales)	Sowerby's beaked whale (M. bidens) Andrews' beaked whale (M. bowdoini) Hubbs' beaked whale (M. carlhubbsi) Blainville's beaked whale (M. densirostris) Ramari's beaked whale (M. eueu) Gervais's beaked whale (M. europaeus) Ginkgo-toothed beaked whale (M. ginkgodens) Gray's beaked whale (M. grayi) Hector's beaked whale (M. hectori) Deraniyagala's beaked whale (M. hotaula) Strap-toothed whale (M. layardii) True's beaked whale (M. mirus) Perrin's beaked whale (M. perrini) Pygmy beaked whale (M. peruvianus) Stejneger's beaked whale (M. stejnegeri) Spade-toothed whale (M. traversii)
Tasmacetus	Shepherd's beaked whale (T. shepherdi)
Ziphius	Cuvier's beaked whale (Z. cavirostris)

Odontocete genera

Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Infraorder: Cetacea

Odontoceti

†Agorophius †Ankylorhiza †Archaeodelphis †Argyrocetus †Ashleycetus †Caolodelphis †Chilcacetus †Enigmatocetus †Eoplatanista †Inticetus †Macrodelphinus †Microcetus †Mirocetus †Neosqualodon †Olympicetus †Papahu †Patriocetus †Phoberodon †Phococetus †Prosqualodon †Sachalinocetus †Simocetus †Sulakocetus †Tangaroasaurus
†Xenorophidae	Albertocetus Cotylocara Echovenator Inermorostrum Xenorophus
†Waipatiidae	Awamokoa Ediscetus Nihohae Nihoroa Otekaikea Urkudelphis Waipatia
†Squalodontidae	Eosqualodon Squalodon
†Squaloziphiidae	Crisocetus? Squaloziphius Yaquinacetus
†Eurhinodelphinidae	Ceterhinops Eurhinodelphis Iniopsis Mycteriacetus Phocaenopsis Schizodelphis Vanbreenia Xiphiacetus Ziphiodelphis
Crown-Odontoceti	see below↓

Crown-Odontoceti

Physeteroidea

†Acrophyseter †Albicetus †Brygmophyseter †Eudelphis †Hoplocetus †Livyatan †Miophyseter †Rhaphicetus †Scaldicetus †Zygophyseter
Kogiidae	†Aprixokogia Kogia †Koristocetus †Nanokogia †Platyscaphokogia †Pliokogia †Praekogia †Scaphokogia †Thalassocetus?
Physeteridae	†Aulophyseter †Cozzuoliphyseter †Diaphorocetus †Idiophyseter †Idiorophus †Orycterocetus Physeter †Physeterula †Placoziphius †Thalassocetus?

Platanistoidea

†Aondelphis †Dolgopolis †Ensidelphis †Perditicetus †Eurhinodelphinidae? †Squalodontidae? †Waipatiidae?
†Allodelphinidae?	Allodelphis Arktocara Goedertius Ninjadelphis Zarhinocetus
†Squalodelphinidae?	Furcacetus Huaridelphis Macrosqualodelphis Medocinia Notocetus Phocageneus Squalodelphis
Platanistidae	†Araeodelphis †Dilophodelphis †Grimadelphis †Pachyacanthus? †Pebanista Platanista †Pomatodelphis †Prepomatodelphis †Zarhachis?

Ziphiidae

†Aporotus †Beneziphius †Caviziphius †Chavinziphius †Chimuziphius †Choneziphius †Dagonodum †Globicetus †Imocetus †Messapicetus †Nazcacetus †Nenga †Ninoziphius †Notoziphius †Pterocetus Tasmacetus †Tusciziphius †Xhosacetus †Ziphirostrum
Berardiinae	†Archaeoziphius Berardius †Microberardius
Ziphiinae	†Izikoziphius Ziphius
Hyperoodontinae	†Africanacetus Hyperoodon †Ihlengesi Indopacetus Mesoplodon

Delphinida	see below↓

Delphinida

†Albireo †Atocetus †Brevirostrodelphis †Cammackacetus †Delphinodon †Hadrodelphis †Herbeinodelphis †Liolithax †Lophocetus †Macrokentriodon †Miminiacetus †Odobenocetops †Pictodelphis †Pithanodelphis †Tagicetus †Westmorelandelphis
†Kentriodontidae	Belonodelphis? Kampholophos Kentriodon Platysvercus Sophianacetus Rudicetus Wimahl
Lipotidae	Lipotes †Parapontoporia †Prolipotes

Inioidea

†Awadelphis
Iniidae	†Brujadelphis †Goniodelphis Inia †Ischyrorhynchus †Isoninia? †Isthminia †Kwanzacetus †Meherrinia †Plicodontinia †Saurocetes
Pontoporiidae	†Atocetus? †Auroracetus †Brachydelphis †Piscorhynchus †Pliopontos †Pontistes †Protophocaena †Samaydelphis †Scaldiporia †Stenasodelphis Pontoporia

Delphinoidea

Monodontidae	†Bohaskaia †Casatia Delphinapterus †Denebola †Haborodelphis Monodon
Phocoenidae	†Archaeophocaena †Australithax †Haborophocoena †Lomacetus †Miophocaena Neophocaena †Numataphocoena Phocoena Phocoenoides †Piscolithax †Pterophocaena? †Semirostrum †Septemtriocetus

Delphinidae

†Arimidelphis †Australodelphis †Eodelphinus †Etruridelphis †Hemisyntrachelus Lagenorhynchus †Norisdelphis Orcinus †Platalearostrum †Pliodelphis †Pterophocaena?
Lissodelphininae	Cephalorhynchus Lissodelphis
Delphininae	Delphinus Lagenodelphis Sotalia Sousa Stenella Tursiops
Globicephalinae	Feresa Globicephala Grampus Orcaella Peponocephala Pseudorca Steno

Taxon identifiers
Stenella	Wikidata: Q594051 Wikispecies: Stenella ADW: Stenella AFD: Stenella BioLib: 20800 CoL: 6468N EoL: 15603 GBIF: 2440546 iNaturalist: 41493 ITIS: 180428 MSW: 14300084 NBN: NBNSYS0000188740 NCBI: 9734 NZOR: 29704afd-7354-4fa0-ac72-b823a1544b32 Paleobiology Database: 102903 WoRMS: 137024