Heaviside’s Dolphin

Heaviside's dolphin (Cephalorhynchus heavisidii) is one of six dolphins in the genus Cephalorhynchus. The small cetacean is endemic to the Benguela ecosystem along the southwest coast of Africa. == Taxonomy and evolution == === Nomenclature === Early in the 19th century, a specimen was caught off the Cape of Good Hope and brought to the United Kingdom by a Captain Haviside of the British East India Company. Zoologist John Edward Gray, who described the species in his Spicilegia Zoologica, misidentified Haviside as the surgeon John Heaviside, who was known for his own biological collections at the time. "Heaviside's dolphin" is the recognised common name, though amongst others, "Haviside's dolphin" and "Benguela dolphin" are also used, the latter especially in Namibia. The genus name "Cephalorhynchus" comes from the Greek kephale for 'head' and rhynchos for 'beak'. For the species name "heavisidii" see the above description. === Closely related species and genetic origin === The three other species in the genus Cephalorhynchus are the Chilean dolphin (C. eutropia), the Commerson's dolphin (C. commersonii) and the Hector's dolphin (C. hectori). All are located in cool temperate shelf waters in the Southern Hemisphere. Genetic studies suggest that the Cephalorhynchus dolphins originated from a single…