Zapteryx
Zapteryx is a genus of electric rays in the family Narkidae. Commonly known as numbfishes, these rays are characterized by their flattened bodies and the presence of a pair of electric organs located on their heads. They are found in temperate and tropical waters around the world, inhabiting sandy and muddy bottoms, as well as rocky reefs.
Characteristics
Zapteryx species share several key characteristics. Their bodies are flattened dorsoventrally, with a broad, rounded head. Their pectoral fins are large and fused to the head, forming a disk-shaped body. Their eyes are small and positioned dorsally, while their spiracles are located behind the eyes. They possess a pair of electric organs located on their heads, which generate a strong electrical discharge for defense and stunning prey.
Environments
Zapteryx species are typically found in coastal waters, from the intertidal zone to depths of up to 100 meters. They prefer sandy, muddy, and rocky bottoms, where they can bury themselves in the sediment. Their distribution ranges from the Mediterranean Sea to the Atlantic Ocean, including the coasts of Europe, Africa, and North America.
Species
The genus Zapteryx contains three recognized species:
- Zapteryx brevirostris (Müller & Henle, 1841)
- Zapteryx exasperata (Jordan & Gilbert, 1880)
- Zapteryx insignis (Jordan & Gilbert, 1880)