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The Asian small-clawed otter (Aonyx cinereus), also known as the oriental small-clawed otter and the small-clawed otter, is an otter species native to South and Southeast Asia. It has short claws that do not extend beyond the pads of its webbed digits. With a total body length of 730 to 960 mm (28.6 to 37.6 in), and a maximum weight of 3.5 kg ...
An Asian small-clawed otter. In 2013, the city of Susaki, Kochi Prefecture unveiled an official mascot called Shinjo-kun (しんじょう君), an extinct Japanese river otter wearing a nabeyaki (hot pot) ramen dish for a hat. [2] [3] The Shinjo river in Susaki is noted as the place of the last official sighting of the species in 1979.
Aonyx is a genus of otters, containing three species, the African clawless otter, the Congo clawless otter, and the Asian small-clawed otter. The word aonyx means "clawless", derived from the prefix a-("without") and onyx ("claw/hoof").
Most have sharp claws on their feet and all except the sea otter have long, muscular tails. The 13 species range in adult size from 0.6 to 1.8 m (2.0 to 5.9 ft) in length and 1 to 45 kg (2.2 to 99.2 lb) in weight. The Asian small-clawed otter is the smallest otter species and the giant otter and sea otter are the largest.
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Oriental small-clawed otter (Aonyx cinereus) Illiger, 1815; Greater hog badger (Arctonyx collaris) Cuvier, 1825 [36] Northern hog badger (Arctonyx albogularis) Blyth, 1853 [37] Eurasian otter (Lutra lutra) (Linnaeus, 1758) Hairy-nosed otter (Lutra sumatrana) (Gray, 1865) extirpated; Smooth-coated otter (Lutrogale perspicillata) (I. Geoffroy ...
The smooth-coated otter and the Asian small-clawed otter genetically diverged about 1.33 ± 0.78 million years ago. Hybridisation of smooth-coated otter males with Asian small-clawed otter females has occurred in Singapore. The resulting offspring and their descendants then bred back into the smooth-coated otter population, but maintained the ...
The marine otter has webbed paws and strong claws. The ventral side (underside) of the paws are partially covered in fur. It has 36 teeth and a dental formula of 3.1.3-4.1 3.1.3.2. The teeth are developed for slicing instead of crushing. The marine otter does not display sexual dimorphism. [5] Art by Jacques Christophe Werner, 30 April 1848