Hyperoodon ampullatus Forster 1770

• Main Authors: Russell A. Mittermeier, Don E. Wilson
• Format: Other/Unknown Material
• Language: unknown
• Published: Lynx Edicions 2014
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Mammalia; Cetacea; Hyperoodontidae; Hyperoodon; Hyperoodon ampullatus; Baleine; Canada; Jan Mayen; The Beak; The Throat; Davis Strait; hyperoodon ampullatus; North Atlantic; Northern bottlenose whale; Spitsbergen
• Online Access: https://doi.org/10.5281/zenodo.6608509; http://treatment.plazi.org/id/035387C7FFC4FFADFF551FA6FAF3FBB9

4. Northern Bottlenose Whale Hyperoodon ampullatus French: Baleine-a-bec boréale / German: Nordlicher Entenwal / Spanish: Zifio calderén septentrional Other common names: Bottlehead, Bottlie, Common Bottlenose Whale, Flounder's Head, North Atlantic Bottlenose Whale Taxonomy. Balaena ampullatus Forster, 1770, Maldon (England). Forster named this species based on descriptions of whales seen at sea by P. Kalm during his travels in North America and on the description written by T. Pennant in 1769 of S. Dale’s “beaked whale” which was found stranded in Maldon, Essex, United Kingdom,as long ago as September 1717. Monotypic. Distribution. Restricted to the cooler waters of the N Atlantic Ocean, as far N as the Davis Strait, Jan Mayen, and Spitsbergen, and as far S as NE USA, Azores, and Canary Is; in E Atlantic Ocean, this species appears to be relatively rare S of Bay of Biscay. Although its occurrence seems to be relatively continuous in some parts of its distribution, such as in the E Atlantic Ocean, it appears to be more fragment ed in others, such as in the waters off E Canada. Descriptive notes. Total length 600-1000 cm; weight 7500-10,000 kg. The Northern Bottlenose Whale is the only beaked whale where there is evidence that adult males are consistently larger than adult females. Body is spindle-shaped, with greatest girth around its midpoint. Flukes are wide in relation to body length, and tailstock is compressed laterally. Dorsal fin is small and set approximately two-thirds the distance between tip of the beak and end of the tail. Coloration is typically dark brown, dark gray, or black. Unlike many other species of beaked whales, Northern Bottlenose Whales, even older males, do not accumulate white linear scars resulting from intraspecific aggression. Rostrum and lower jaw form a short but well-defined beak, and there are two grooves on the throat. Shape of forehead is notably sexual dimorphic. In young males and females, forehead is rounded and similar to that of the bottlenose dolphins (7ursiops spp.). As ...