Finless sleeper ray
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The finless sleeper ray is a species of electric ray in the family Narkidae, and the sole member of its genus. It is found over the continental shelf of Southeast Asia from the eastern Andaman Sea to
Temera hardwickii dorsal pukhet
Temera hardwickii ventral pukhet
The finless sleeper ray can be identified by its lack of dorsal fins.
Drawing of selected anatomy of the finless sleeper ray; note the large electric organs on either side of the disc.
Chondrichthyes
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Chondrichthyes is a class of jawed fish that contains the cartilaginous fish or chondrichthyans, which all have skeletons primarily composed of cartilage. They can be contrasted with the Osteichthyes
Finless sleeper ray
…shelf of Southeast Asia from the eastern Andaman Sea to Vietnam and Borneo. Typically growing no more than 15 cm (5.9 in) long, it may be the smallest cartilaginous fish. The finless sleeper ray is the only electric ray that lacks dorsal fins. It has an oval pectoral fin disc that varies from longer than wide to wider…
Chondrichthyes
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