Genus: Tetronarce, Torpedo Rays, Torpedo Ray

small eyes
snout short
top disc uniform dark

TETRONARCE
TORPEDO RAYS
Disc circular, smooth, broad, front ~straight, thick at front and center, relatively soft & fleshy, thinner on and behind sides; snout very short; eyes very small; spiracles very small, without knobs or papillae around edges; two large, kidney shaped electric organs on sides of head; mouth moderate sized, with longitudinal grooves at sides, lips not cartilaginous and tubular; pectorals very thick at edges; tail thick, blending into trunk, shorter than disc; two dorsal fins, first larger; tail fin large, triangular; skin smooth and spineless; top of body uniformly very dark; live in deep water.
Occurs throughout the tropical and warm temperate parts of the world, except for central Pacific. It has 8 species; one west Atlantic species in our area.