Inia
{{Short description|Genus of dolphins}}
{{About|the genus of dolphin||Inia (disambiguation)}}
{{Automatic taxobox
| image = Inia Duisburg zoo crop2.jpg
| image_caption = An Amazon river dolphin at the Duisburg Zoo.
| image2 = Amazon river dolphin size.svg
| image2_caption = Size compared to an average human
| taxon = Inia
| authority = d'Orbigny, 1834
| type_species = Inia boliviensis{{MSW3 | id = 14300137}}
| type_species_authority = d'Orbigny, 1834
| subdivision_ranks = Species
| subdivision = * See text
| range_map = Inia range map PLoS ONE.jpg
| range_map_caption = Inia spp. ranges. I. araguaiaensis, I. geoffrensis and I. boliviensis are blue, light green and purple, respectively. I. humboldtiana is grouped with geoffrensis.
}}
Inia is a genus of river dolphins from South America, containing one to four species.
Taxonomy
File:Boto skull (Inia spp).jpg
The genus was described by Alcide d'Orbigny in 1834 when Delphinus geoffrensis, described by Henri Marie Ducrotay de Blainville in 1817, was recognized to be a unique taxon. D'Orbigny also described Inia boliviensis as type species of the genus.{{Cite journal | last1 = Robineau | first1 = Daniel | last2 = Buffrénil | first2 = Vivian, de | title = Early descriptions of whales: D'Orbigny, A. 1834. Note on a new cetacean genus, from the rivers of the central part of South America. [Notice sur un nouveau genre de cétacé, des rivières du centre de l'Amèrique méridionale. Nouvelles annales du Muséum d'histoire naturelle, 3:28–36]. | pages = 209–212 | year = 2003 | journal = Journal of Cetacean Research and Management | volume = 5 | issue = 3 | doi = 10.47536/jcrm.v5i3.799 | doi-access = free}} A 1998 classification listed a single species, Inia geoffrensis, in the genus Inia, with three recognized subspecies.{{cite book | author = Rice, D. W. | year = 1998 | title = Marine mammals of the world: systematics and distribution | publisher = Society of Marine Mammalogy Special Publication Number 4 | page = 231}} Most of the scientific community accepted this single species classification, as does the IUCN.{{cite iucn|author1=da Silva, V.|author2= Trujillo, F.|author3= Martin, A.|author4= Zerbini, A.N.|author5= Crespo, E.|author6= Aliaga-Rossel, E. |author7= Reeves, R. |name-list-style=amp |year=2018 |title= Inia geoffrensis |page= e.T10831A50358152 |doi=10.2305/IUCN.UK.2018-2.RLTS.T10831A50358152.en}} As of 2016 the Committee on Taxonomy of the Society for Marine Mammalogy considers the genus Inia to contain one species with only two subspecies: the Bolivian (I. g. boliviensis) and the Amazon (I. g. geoffrensis) subspecies.{{cite web|url=https://www.marinemammalscience.org/species-information/list-marine-mammal-species-subspecies/|title=List of Marine Mammal Species and Subspecies - Society for Marine Mammalogy|website=www.marinemammalscience.org|date=13 November 2016 |language=en-US|access-date=2017-09-01}} In 2014, the population in the Araguaia-Tocantins basin was proposed to define an additional species, Inia araguaiaensis,{{Cite journal | last1 = Hrbek | first1 = Tomas| last2 = Da Silva | first2 = Vera Maria Ferreira| last3 = Dutra | first3 = Nicole| last4 = Gravena | first4 = Waleska| last5 = Martin | first5 = Anthony R.| last6 = Farias | first6 = Izeni Pires| editor1-last = Turvey | editor1-first = Samuel T.| title = A New Species of River Dolphin from Brazil or: How Little Do We Know Our Biodiversity| doi = 10.1371/journal.pone.0083623 | journal = PLOS ONE | volume = 9 | pages = e83623 | date = 2014-01-22| issue = 1| pmid = 24465386| pmc = 3898917| bibcode = 2014PLoSO...983623H| doi-access = free}} but this remains debated. The American Society of Mammalogists recognizes the highest number of species at four, although this is only tentative, pending further studies which could either confirm or deny the classification.{{cite mdd|genus=inia|access-date=2021-09-05}}
American Society of Mammalogists Classification
Genus Inia
- Species Inia araguaiaensis – Araguaian river dolphin
- Species Inia boliviensis – Bolivian river dolphin
- Species Inia geoffrensis – Amazon river dolphin
- Species Inia humboldtiana – Orinoco river dolphin
IUCN Classification
Genus Inia
- Species Inia geoffrensis – Amazon river dolphin
- Amazon Subspecies I. g. geoffrensis
- Bolivian Subspecies I. g. boliviensis
- Orinoco Subspecies I. g. humboldtiana
Society For Marine Mammalogy Classification
- Genus Inia
- Species Inia geoffrensis – Amazon river dolphin
- Amazon Subspecies I. g. geoffrensis
- Bolivian Subspecies I. g. boliviensis
References
{{Reflist}}
;General references
- {{cite book|author=Montgomery, Sy|title=Journey of the Pink Dolphins: An Amazon Quest|url=https://archive.org/details/journeyofpinkdol00symo|url-access=registration|date=15 February 2009|publisher=Chelsea Green Publishing|isbn=9 78-1-60358-175-2|oclc= 42295841}}
- Juliet Clutton-Brock (2000). Mammals, 381 pages.
{{Cetacea|O.}}
{{Odontoceti|D.}}
{{Taxonbar|from=Q2896224}}
{{Authority control}}
Category:Mammals of South America