Lagenorhynchus obscurus fitzroyi

• Common Names
• Description
• Taxonomy
• Similar Species
• More Info
• Further Reading
• Notes

Common Names

Description

Family Delphinidae

The family Delphinidae has been called a 'taxonomic trash basket', because many small to medium-sized odontocetes of various forms have been lumped together in this group for centuries. Consequentely, the so-called delphinids are diverse in form. They range in size from 1 to 1.88 m dolphins of the genera Sotalia and Cephalorhynchus, to the killer whale , in which males can reach lengths of at least 9.8 m. However, most delphinids share the following characteristics: a marine habitat , a noticeable beak, conical teeth, and a large falcate dorsal fin set near the middle of the back. There are exceptions to everyone of these rules , except the presence of basically conical teeth.

Habitat

Biome: Marine

Taxonomy

Similar Species

Members of the genus Lagenorhynchus

There are approximately 29 species in this genus:

L. acutus (Atlantic White-Sided Dolphin) · L. albirostris (White-Beaked Dolphin) · L. asia · L. australis (Blackchin Dolphin) · L. bombifrons · L. breviceps · L. clanculus · L. cruciger (White-Sided Dolphin) · L. electra · L. fitzroy · L. fitzroyi · L. gubernator · L. lateralis · L. latifrons · L. leucopleurus · L. longidens · L. obliquidens (Pacific White-Sided Dolphin) · L. obscurus (Dusky Dolphin) · L. obscurus fitzroyi (Dusky Dolphin) · L. obscurus obscurus (Dusky Dolphin) · L. ognevi · L. pectoralis · L. peresi · L. perspicillatus · L. posidonia · L. superciliosus · L. thicolea · L. thicolea breviceps · L. wilsoni

More Info

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Further Reading

• Brownell, R.L. Jr. and Cipriano, F. 1999. Dusky Dolphin Lagenorhynchus obscurus (Gray, 1828). In: S.H. Ridgway and R. Harrison (eds) Handbook of Marine Mammals. Volume 6: The Second Book of Dolphins and the Porpoises, pp. 85–104. Academic Press, San Diego.
• Crespo, E.A., Koen Alonso, M., Dans, S.L., García, N.A., Pedraza, S.N., Coscarella, M. and González, R. 2000. Incidental catches of dolphins in mid-water trawls for Argentine anchovy (Engraulis anchoita) off the Argentine shelf. Journal of Cetacean Research and Management 2: 11–16.
• Dans, S.L., Crespo, E.A., García, N.A., Reyes, L.M., Pedraza, S.N. and Alonso, M.K. 1997. Incidental mortality of Patagonian Dusky Dolphins in mid-water trawling: retrospective effects from the early 1980s. Report of the International Whaling Commission 47: 699–703.
• Gill, P.C., Ross, G.J.B, Dawbin, W.H. and Wapstra, H. 2000. Confirmed sightings of Dusky Dolphins (Lagenorhynchus obscurus) in southern Australian waters. Marine Mammal Science 16: 452–459.
• Groombridge, B. (ed.) 1994. 1994 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland.
• IWC. 1997. Report of the scientific committee. Report of the International Whaling Commission 47: 57–258.
• Reeves, R.R., Smith, B.D., Crespo, E.A. and di Sciara, G.N. (compilers) 2003. Dolphins, Whales and Porpoises: 2002-2010 Conservation Action Plan for the World's Cetaceans. IUCN/SSC Cetacean Specialist Group. IUCN, Gland, Switzerland and Cambridge, UK.
• Rice, Dale W. 1998. Marine Mammals of the World: Systematics and Distribution. Special Publications of the Society for Marine Mammals, no. 4. The Society for Marine Mammalogy. Lawrence, Kansas, USA. ix + 231. ISBN: 1-891276-03-4.
• Schiavini, A., Pedraza, S.N., Crespo, E.A., González, R. and Dans, S.L. 1999. Abundance of Dusky Dolphins (Lagenorhynchus obscurus) off north and central Patagonia, Argentina, in spring and a comparison with incidental catch in fisheries. Marine Mammal Science 15: 828–840.
• Van Waerebeek, K. 1994. A note on the status of the Dusky Dolphins (Lagenorhynchus obscurus) off Peru. Report of the International Whaling Commission (Special Issue) 15: 525–527.
• Van Waerebeek, K., Alfaro-Shigueto, J., Montes, D., Onton, K., Santillan, L., Van Bressem, M.-F. and Vega, D. 2002. Fisheries related mortality of small cetaceans in neritic waters of Peru in 1999–2001. International Whaling Commission, Scientific Committee Document SC/54/SM10, Cambridge, UK.
• Van Waerebeek, K., Van Bressem, M.-F., Alfaro-Shigueto, J., Sanino, G.P., Montes, D. and Ontón, K. 1999. A preliminary analysis of recent captures of small cetaceans in Peru and Chile. International Whaling Commission, Scientific Committee Document SC/51/SM17, Cambridge, UK.
• Würsig, B., Cipriano, F., Slooten, E., Constantine, R., Barr, K. and Yin, S. 1997. Dusky Dolphins (Lagenorhynchus obscurus) off New Zealand: status of present knowledge. Report of the International Whaling Commissio 47: 715–722.
• Wilson, Don E., and DeeAnn M. Reeder, eds. 1993. Mammal Species of the World: A Taxonomic and Geographic Reference, 2nd ed., 3rd printing. Smithsonian Institution Press. Washington, DC, USA. xviii + 1207. ISBN: 1-56098-217-9.

Notes

Contributors

• Brands, S.J. (comp.) 1989-2006. Systema Naturae 2000. The Taxonomicon. Universal Taxonomic Services, Amsterdam, The Netherlands. Accessed October 3, 2006.
• Cetacean Specialist Group 1996. Lagenorhynchus obscurus. In: IUCN 2004. 2004 IUCN Red List of Threatened Species. www.redlist.org . Downloaded on 30 January 2005.

Identifiers

• Biodiversity Heritage Library NamebankID: 2478525
• Catalogue of Life Accepted Name Code: ITS-612628
• Global Biodiversity Information Facility Taxonkey: 13907571
• Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 612628
• Zipcode Zoo Species Identifier: 6211

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