species the distance between the spiracle and the eye
is longer than the horizontal diameter of the eye. The
margins of the disc are concave and it is shorter than
the tail. The dorsal coloration is yellowish brown to
chocolate brown and there are no markings on the body.
The ventral surface is white. The juveniles often have
a stripe in the middle of the disc and dark blotches
on the disc and on the dorsal fin bases.