Inia geoffrensis

(de Blainville in A. G. Desmarest, 1817)

Amazon River Dolphin

Taxonomy

Subclass : Theria
Infraclass : Placentalia
Magnorder : Boreoeutheria
Superorder : Laurasiatheria
Order : Artiodactyla
Suborder : Whippomorpha
Infraorder : Cetacea
Parvorder : Odontoceti
Superfamily : Inioidea
Family : Iniidae
Genus : Inia

Species status

Living
Found in the wild
Listed in MSW3 2005

Authority citation

Desmarest, A.G. 1817. DAUPHIN, Delphinus. Pp. 146–179 in Anonymous. (eds.). Nouveau dictionnaire d'histoire naturelle. Nouvelle Édition. Tome IX. Deterville, Nouveau Dictionnaire d'Histoire Naturelle, 624 pp.

Authority publication link

https://www.biodiversitylibrary.org/page/18037844

Original name as described

Delphinus Geoffrensis

Other common names

Boto · Bufeo · Pink River Dolphin

Type material

MNHN-ZM-MO-1870-274

Type kind

holotype

Type locality

"sur la côte du Brésil," probably upper Amazon of Brazil.

Biogeographic realm

Neotropic

Country distribution

Venezuela · Colombia · Peru · Ecuador · Brazil

Taxonomy notes

previously included I. boliviensis, I. humboldtiana, and the populations now attributed to I. araguaiaensis; some authors do not recognized four species within Inia based on the lack of data from where the species come in contact, however, pending further studies into these species contact zones, they are continually recognized

Taxonomy notes citation

Ruiz-García, M., S. Caballero, M. Martinez-Agüero and J. M. Shostell. 2008. Molecular differentiation among Inia geoffrensis and Inia boliviensis (Iniidae, Cetacea) by means of nuclear intron sequences. Pages 1—25 in V. T. Koven. ed., Population Genetics Research Progress Chapter 6. · Hrbek, T., da Silva, V. M. F., Dutra, N., Gravena, W., Martin, A. R., & Farias, I. P. (2014). A new species of river dolphin from Brazil or: how little do we know our biodiversity. PLoS one, 9(1), e83623. · Emin-Lima, R., Machado, F. A., Siciliano, S., Gravena, W., Aliaga-Rossel, E., de Sousa e Silva, J., ... & de Oliveira, L. R. (2022). Morphological disparity in the skull of Amazon River dolphins of the genus Inia (Cetacea, Iniidae) is inconsistent with a single taxon. Journal of Mammalogy. · Tenille, A. F. C. J. S., e Silva, D. J. D. S., & de Oliveira, J. L. R. New genetic data extend the range of river dolphins Inia in the Amazon Delta.

IUCN Red List status

Endangered

Species Permalink

https://www.mammaldiversity.org/taxon/1006456

Country distribution map

The map below provides a general overview. Most species inhabit only specific regions within countries. Hover over the highlighted regions to see the country name.

Names and synonyms

Present and past (if available) associated names to the species. Click on a name to view its details. If the list is long, scroll down to see more.

Delphinus amazonicus

(von Spix & Martius, 1831)

Family

Iniidae

Root name

amazonica

Validity status

synonym

Nomenclatural status

available

Type

lost (number not known)

Type kind

holotype

Authority page

1118

Authority publication

Munich

Name usages

Mead & Brownell (2005) (information at https://hesperomys.com/a/9684)

Delphinus Geoffrensis

(de Blainville in A. G. Desmarest, 1817)

Family

Iniidae

Root name

geoffrensis

Validity status

species

Nomenclatural status

available

Type

MNHN-ZM-MO-1870-274

Type kind

holotype

Authority page

151

Authority page URI

https://www.biodiversitylibrary.org/page/18037844

Authority publication

Nouveau Dictionnaire d'Histoire Naturelle

Delphinorhyncus Geoffroyi

(Lesson, 1827)

Family

Iniidae

Root name

geoffroyi

Validity status

synonym

Nomenclatural status

name_combination

Authority page

405

Authority page URI

https://www.biodiversitylibrary.org/page/54207872

Authority publication

Paris

Name usages

Lesson (1827:405, https://www.biodiversitylibrary.org/page/54207872) (information at https://hesperomys.com/a/36839)

Inia geoffrensis

Corbet & J. Edwards Hill, 1980

Family

Iniidae

Root name

geoffrensis

Validity status

synonym

Nomenclatural status

name_combination

Authority page

108

Authority publication

London

Name usages

  1. Corbet & Hill (1980:108) (information at https://hesperomys.com/a/63069)
  2. Honacki, Kinman & Koeppl (1982:290) (information at https://hesperomys.com/a/63071)
  3. Mead & Brownell (2005) (information at https://hesperomys.com/a/9684)
  4. Mittermeier & Wilson (2014:377) (information at https://hesperomys.com/a/67175)
  5. Mammal Diversity Database (2018:ID #10831) (information at https://hesperomys.com/a/67336)
  6. Mammal Diversity Database (2019:ID #10831) (information at https://hesperomys.com/a/67337)
  7. Mammal Diversity Database (2024, https://www.mammaldiversity.org/taxon/1006456) (information at https://hesperomys.com/a/67250)
  8. International Union for the Conservation of Nature (2024, https://www.iucnredlist.org/species/10831/50358152) (information at https://hesperomys.com/a/67246)

Inia geoffrensis geoffrensis

Mead & Brownell, 2005

Family

Iniidae

Root name

geoffrensis

Validity status

synonym

Nomenclatural status

name_combination

Authority publication

Baltimore

Name usages

Mead & Brownell (2005) (information at https://hesperomys.com/a/9684)

Steno frontatus

(E. Blyth, 1863)

Family

Iniidae

Root name

frontatus

Validity status

synonym

Nomenclatural status

name_combination

Authority page

91

Authority page URI

https://www.biodiversitylibrary.org/page/47534772

Authority publication

Calcutta

Name usages

Blyth (1863:91, https://www.biodiversitylibrary.org/page/47534772) (information at https://hesperomys.com/a/37155)

Delphinus Rostratus

(G. K. Shaw, 1801)

Family

Iniidae

Root name

rostrata

Validity status

synonym

Nomenclatural status

available

Authority page

514

Authority page URI

https://www.biodiversitylibrary.org/page/19633132

Authority publication

London

Delphinus Shawensis

(de Blainville in A. G. Desmarest, 1817)

Family

Iniidae

Root name

shawensis

Validity status

synonym

Nomenclatural status

nomen_novum

Authority page

153

Authority page URI

https://www.biodiversitylibrary.org/page/18037846

Authority publication

Nouveau Dictionnaire d'Histoire Naturelle

delphinus Geoffroyi

(A. G. Desmarest, 1822)

Family

Iniidae

Root name

geoffroyi

Validity status

synonym

Nomenclatural status

unjustified_emendation

Authority page

512

Authority page URI

https://www.biodiversitylibrary.org/page/39521956

Authority publication

Paris

Name usages

Lesson (1842:197) (information at https://hesperomys.com/a/36812)

Delphinus frontatus

(G. Cuvier, 1823)

Family

Iniidae

Root name

frontata

Validity status

synonym

Nomenclatural status

available

Authority page

278, 400

Authority publication

Ossemens fossiles

Name usages

  1. Mead & Brownell (2005) (information at https://hesperomys.com/a/9684)
  2. Mead & Brownell (2005) (information at https://hesperomys.com/a/9684)

Delphinus rostrats

(F. Cuvier, 1836)

Family

Iniidae

Root name

rostrats

Validity status

synonym

Nomenclatural status

incorrectsubsequentspelling

Authority page

253

Authority publication

Paris

Delphinus schawensis

(F. Cuvier, 1836)

Family

Iniidae

Root name

schawensis

Validity status

synonym

Nomenclatural status

incorrectsubsequentspelling

Authority page

253

Authority publication

Paris

Inia Geoffroyii

J. E. Gray, 1847

Family

Iniidae

Root name

geoffroyii

Validity status

synonym

Nomenclatural status

incorrectsubsequentspelling

Authority page

45

Authority page URI

https://www.biodiversitylibrary.org/page/6957476

Authority publication

London

Inia geoffroyensis

Austin, 1897

Family

Iniidae

Root name

geoffroyensis

Validity status

synonym

Nomenclatural status

variant

Authority page

771

Authority page URI

https://www.biodiversitylibrary.org/page/31200810

Authority publication

Proceedings of the Zoological Society of London

Sotallia pallida

(Sanborn, 1949)

Family

Iniidae

Root name

pallida

Validity status

synonym

Nomenclatural status

misidentification

Authority page

287

Authority publication

Journal of Mammalogy

Name usages

Mead & Brownell (2005) (information at https://hesperomys.com/a/9684)

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