In time-honoured tradition, here are some slides from one of my talks. They’re self-explanatory, but let me know if elaboration is required…
Anecdotal data and modelling work suggests that a few more species are yet to come – and more on those at some stage in the future. And if you want references for the new species featured above…
Beasley, I., Robertson, K. M. & Arnold, P. 2005. Description of a new dolphin, the Australian snubfin dolphin Orcaella heinsohni sp. n. (Cetacea, Delphinidae). Marine Mammal Science 21, 365-400.
Dalebout, M. L. 2002., Mead, J. G., Baker, C. S., Baker, A. N. & van Helden, A. L. 2002. A new species of beaked whale Mesoplodon perrini sp. n. (Cetacea: Ziphiidae) discovered through phylogenetic analyses of mitochondrial DNA sequences. Marine Mammal Science 18, 577-608.
– ., Ross, J. B., Baker, C. S., Anderson, R. C., Best, P. B., Cockcroft, V. G., Hinsz, H. L., Peddemors, V., Pitman, P. L. 2003. Appearance, distribution, and genetic distinctiveness of Longman’s beaked whale, Indopacetus pacificus. Marine Mammal Science 19, 421-461.
Reyes, J. C., Mead, J. G. & Van Waerebeek, K. 1991. A new species of beaked whale Mesoplodon peruvianus sp. n. (Cetacea: Ziphiidae) from Peru. Marine Mammal Science 7, 1-24.
Wada, S., Oishi, M. & Yamada, T. K. 2003. A newly discovered species of living baleen whale. Nature 426, 278-281.