Long-tailed river stingray

Plesiotrygon iwamae

A pale whip extends far beyond the oval disc and distinct spiracle.

The disc is oval, with a longer anterior snout than nana. Brown skin bears irregular pale marks; a very long pale filamentous tail and projecting pelvic fins complete the outline.

Adult size: Up to 58 cm (disc width)

Natural habitat: Native to the Amazon basin from Ecuador to Belém, Brazil, including the Napo, Solimões, Amazonas and Pará rivers.

Do not leave out the long tail when planning space. Disc length or width exceeds 65cm. Avoid contact with the sting.

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Appearance and identification

Larger rhomboid spiracles and an enlarged tail-thorn row contrast with nana's tiny spiracles and scattered small denticles. Nana's whip is usually darker, but tail colour varies.