The fin-like lobes are short with black tips, showing a silvery gray inner surface and a white outer surface behind the eye.
The devil ray has a subterminal mouth below the head, a small dorsal fin with a white tip, and a short, serrated caudal spine located near the base of the very long whip-like tail.
The data on the size of vary, depending on the source, between 520cm and 650cm, it is quite conceivable that one of the English names of Mobula mobular, Japanese devil ray, with the ray Mobula japanica, may have led to confusion and misattribution of data.
This also applies to the depth distribution of the ray, which is said to range from 0 - 700 meters to 0 - 1112 meters (Fishes of Australia).
In any case, the water depth of 1112 meters is documented for Mobula japanica.
It is also unclear whether the tip of the stingray's spine is poisonous or non-toxic, scientific documentation can be found on the web for both statements.
Rays, like other marine animals, are among the victims of plastic pollution in the sea, because they can not distinguish between small pieces of plastic and small plankton and then eat it.