Caribbean electric ray

Description

The lesser electric ray (Narcine bancroftii), also known as the Brazilian electric ray, small electric ray, spotted torpedo ray, torpedofish or trembler, is a species of numbfish in the family Narcinidae found on the western coastal fringes of the Atlantic Ocean and Caribbean Sea. It is a small slow-moving fish, living in the surf zone of sandy or muddy beaches. Here it is easily caught as bycatchby shrimp fisheries and seine netters. As a result, its numbers have declined rapidly and the International Union for Conservation of Nature has rated it as being "critically endangered". This species of ray has a near-circular body and a short tail. It grows to approximately 45 centimeters (18 in) long, and 20 cm (8 in) wide, with colouration ranging from dark brown to reddish orange. It has irregular rings, sometimes oval in shape. The ventral surface ranges from white to greenish. It has tooth rows that vary in number from 17 to 34 in each jaw. This depends on the size of the specimen. It has two electric organs, elongate in shape, that run from the front of the eyes, down to the rear end of the disc. These organs can generate a peak voltage of about 14 to 37 volts, which they use to stun prey and to defend themselves.