The Pacific electric ray has a soft, flabby body devoid of dermal denticles.
It has an oval pectoral fin disc about 1.2 times as wide as long, with a nearly straight front margin and a pair of kidney-shaped electric organs visible beneath the skin.
The eyes are small and followed by smooth-rimmed spiracles; the space from the spiracles to the snout tip is about 1.8 times the distance between the spiracles.
There is a curtain of skin between the nostrils that almost reaches the mouth, which is arched with deep furrows at the corners.
The distance between the mouth and the snout tip is about equal to the mouth width, and three times that of the distance between the nostrils.
There are 25–28 upper tooth rows and 19–26 lower tooth rows; each tooth is tiny and smooth, with a single sharp cusp.
Pacific electric rays are founded in Japan, south Kuril Islands, and Kinmei Seamount; Wiah Point, Graham Island, northern British Columbia to Todos Santos, southern Baja California, including Isla Guadalupe, central Baja California, and Peru.
Although there was one record from the Gulf of California.
Common from about San Francisco Bay southward into southern Baja California.
Pacific electric rays can grow up to a length more than 140 cm (55.1 in), and 18-23 cm (7.1-9.1 in) at birth.
Pacific electric rays are able to swim to a depth from the surf zone to 1,079 m (3,539ft), usually shallower than 300m (984ft).

Two dorsal fins are present, with the first more than twice the size of the second and positioned opposite the large pelvic fins.
The tail is short and stocky, terminating in a large, triangular caudal fin with a nearly straight trailing margin.
This ray is dark gray, slate, or brown above, sometimes with small darker spots that increase in number with age; the underside is white.
Males attain a maximum known length of 0.9 m (3.0 ft), and females 1.4 m (4.6 ft).
The maximum recorded weight is 41 kg (90 lb).
The Pacific electric ray has a soft, flabby body devoid of dermal denticles. It has an oval pectoral fin disc about 1.2 times as wide as long, with a nearly straight front margin and a pair of kidney-shaped electric organs visible beneath the skin. The eyes are small and followed by smooth-rimmed spiracles; the space from the spiracles to the snout tip is about 1.8 times the distance between the spiracles. There is a curtain of skin between the nostrils that almost reaches the mouth, which is arched with deep furrows at the corners. The distance between the mouth and the snout tip is about equal to the mouth width, and three times that of the distance between the nostrils. There are 25–28 upper tooth rows and 19–26 lower tooth rows; each tooth is tiny and smooth, with a single sharp cusp. Pacific electric rays are founded in Japan, south Kuril Islands, and Kinmei Seamount; Wiah Point, Graham Island, northern British Columbia to Todos Santos, southern Baja California, including Isla Guadalupe, central Baja California, and Peru. Although there was one record from the Gulf of California. Common from about San Francisco Bay southward into southern Baja California. Pacific electric rays can grow up to a length more than 140 cm (55.1 in), and 18-23 cm (7.1-9.1 in) at birth. Pacific electric rays are able to swim to a depth from the surf zone to 1,079 m (3,539ft), usually shallower than 300m (984ft).
Two dorsal fins are present, with the first more than twice the size of the second and positioned opposite the large pelvic fins. The tail is short and stocky, terminating in a large, triangular caudal fin with a nearly straight trailing margin. This ray is dark gray, slate, or brown above, sometimes with small darker spots that increase in number with age; the underside is white. Males attain a maximum known length of 0.9 m (3.0 ft), and females 1.4 m (4.6 ft). The maximum recorded weight is 41 kg (90 lb).
Pacific electric ray