Neophocaena
Neophocaena is a genus of oceanic dolphins containing a single extant species, the finless porpoise (Neophocaena phocaenoides). Finless porpoises are small, stocky dolphins that are found in coastal and estuarine waters throughout the Indo-Pacific region. They are a highly adaptable species and can tolerate a wide range of salinity and temperatures. Finless porpoises are characterized by their lack of a dorsal fin, which gives them their name. They also have a blunt, rounded head, a short, thick neck, and a small, triangular flipper. Their coloration ranges from gray to black, with a white belly.
Common Names
Finless porpoises are commonly referred to by a number of names, including:
- Finless porpoise
- Chinese porpoise
- Indian porpoise
- Black finless porpoise
- Round-headed porpoise
Characteristics
Finless porpoises are small dolphins, typically measuring between 1.4 and 2 meters (4.6 to 6.6 ft) in length and weighing between 30 and 70 kg (66 to 154 lb). They have a distinctive lack of a dorsal fin, as well as a blunt, rounded head, a short, thick neck, and a small, triangular flipper. Their coloration ranges from gray to black, with a white belly. They are also known for their short, rounded beak and small, triangular flippers.
Environment
Finless porpoises are found in coastal and estuarine waters throughout the Indo-Pacific region. They prefer shallow, muddy waters, and are often found in areas with high levels of biological productivity. They are also known to inhabit rivers and lakes, and have been found as far inland as the Yangtze River in China.