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Jumping Sotalia in the Orinoco river
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Infraorder: Cetacea
Family: Delphinidae
Genus: Sotalia
Gray, 1866[1]

S. fluviatilis
S. guianensis

The dolphin genus Sotalia is considered to have two member species with the classification of Sotalia guianensis[2][3] as a distinct species from Sotalia fluviatilis[4][5] in 2007. This was a result of recent morphometric analyses, as well as mitochondrial DNA analysis.[6]

Members of this genus are found in the Atlantic and Caribbean coasts of Central and South America as well as in the Amazon River and most of its tributaries.[3]

Member species


  1. ^ "Sotalia". Integrated Taxonomic Information System. Retrieved January 2013. Check date values in: |accessdate= (help)
  2. ^ Cunha, H.A., V.M.F. da Silva, J. Lailson-Brito Jr., M.C.O. Santos, P.A.C. Flores, A.R. Martin, A.F. Azevedo, A.B.L. Fragoso, R.C. Zanelatto, and A.M. Solé-Cava (2005). "Riverine and marine ecotypes of Sotalia dolphins are different species". Marine Biology. 148: 449–457. doi:10.1007/s00227-005-0078-2.
  3. ^ a b "Sotalia guianensis, Guiana Dolphin, Costero". Convention on Migratory Species. 2010. Retrieved January 2013. Check date values in: |accessdate= (help)
  4. ^ "Wilson & Readers Mammals Species of the World". Archived from the original on 2012-09-29. Retrieved January 2013. Check date values in: |accessdate= (help)
  5. ^ IUCN
  6. ^ Caballero S, Trujillo F, Vianna JA, Barrios-Garrido H, Montiel MG, Beltran-Pedreros S, Marmontel M, Santos MC, Rossi-Santos M, Santos FR, Baker CS (2007) Taxonomic status of the genus Sotalia: species level ranking for 'tucuxi' (Sotalia fluviatilis) and 'costero' (Sotalia guianensis) dolphins. Mar Mamm Sci 23: 358-386.

Further reading

  • Flach, Leonardo; Flach, Patricia Amaral; Chiarello, Adriano G (2008). "Density, abundance and distribution of the Guiana dolphin (Sotalia guianensis van Benéden, 1864) in Sepetiba Bay, Southeast Brazil". The Journal of Cetacean Research and Management. International Whaling Commission. 10 (1): 31–36. ISSN 1561-0713. Retrieved January 2013. Check date values in: |accessdate= (help)
  • Di Beneditto, Ana Paula Madeira; Ramos, Renata Maria Arruda (2004). "Biology of the marine tucuxi dolphin (Sotalia fluviatilis) in south-eastern Brazil". Journal of the Marine Biological Association of the UK. 84 (6): 1245–1250. doi:10.1017/S0025315404010744h.

External links

  • Whale and Dolphin Conservation Society (WDCS)
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