It is found in the East Pacific Ocean from Baja California and the Gulf of California to Sechura, Peru, ranging from shallow water to a depth of 64 m (210 ft).

[1] This species was first described in 1964 by the American ichthyologist Shelton Pleasants Applegate, who was an expert on fossil and living sharks, and by American marine biologist John Edgar Fitch.

[2] The longnose eagle ray is native to tropical and warm temperate waters in the east central Pacific Ocean.

Like other members of the genus they are ovoviviparous, the young developing in the uterus and receiving nourishment from a yolk or uterine secretions.

[1] Living in shallow water above the continental shelf and being a schooling fish, the longnose eagle ray is vulnerable to fishing activities; it is not a target species but is sometimes landed as bycatch by trawling, gillnets and longline fisheries, with the areas where it lives being subject to intensive fishing pressure.