Shorefishes of the Tropical Eastern Pacific Online Information System
Updated: 06/12/2008  
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    Pteroplatytrygon  
Rajiformes  -  Dasyatidae  -  Pteroplatytrygon  -  Pteroplatytrygon violacea

Pteroplatytrygon violacea

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disc wedge shaped, front convex
 
  tail long, + fold underneath
 

     

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Pteroplatytrygon violacea (Bonaparte, 1832)

Blue stingray,     Pelagic stingray

Disc broad, wedge-shaped, wider than long, front broadly convex, sides straight; snout relatively long (8-15% of disc width); eyes very small; mouth slightly arched, floor of mouth with cross row of 10-12 forked, fleshy papillae, teeth with quadrangular bases, low sharp tips; a broad flap between round nostrils and mouth; a row of small thorns along center of back; tail much longer than disc length, with thick base, tapering to a slender point, with one long large serrated venomous spine; tail without a dorsal ridge, with a low ventral fleshy ridge from tail origin to the base of the spine.

Upper surface dark purple to green-blue to black; lower surface dark brown to black. 


Size: 163 cm long, 80 cm disc width.

Habitat: pelagic, continental shelf and open ocean, occasionally nearshore.

Depth: 0-250 m.

Probably circumtropical; southern California to Chile, except the Gulf of California, all the oceanic islands.

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