Derived from an old diminutive of MARTIN. MAXWELL Scottish. From a place name meaning Mack's stream, from the name Mack, a short form of the Scandinavian name MAGNUS, combined with Old English wella stream ...
For the ray-finned fish known as common dolphin, see Mahi-mahi. The common dolphin is the name given to two species (and possibly a third) of dolphin making up the genus Delphinus. Prior to the mid-1990s, most taxonomists only recognised one species in this genus, the common dolphin Delphinus delphis.
Bottlenose dolphins have been the mainstays of oceanariums and TV programs for decades. The largest dolphin species is the Orca, or 'killer whale' (Orcinus orca). Male killer whales can grow up to 9.6 m (31.5 ft) . Here is a listing of the dolphin species: