The Long-tailed Butterfly Ray (Gymnura poecilura) is a fascinating and elusive species of ray found in the tropical waters of the Indo-Pacific region. Its unique appearance and intriguing behavior have captivated marine biologists and enthusiasts alike.
Description & Characteristics
The Gymnura poecilura is characterized by its distinctive long, whip-like tail, which can grow up to two-thirds the length of its body. This tail is used as a defensive mechanism, as it can be lashed out with force to deter predators. The ray’s body is flattened and disc-shaped, with a broad, rounded snout and large, pectoral fins that are fused to its head. The Long-tailed Butterfly Ray can reach a maximum size of 250.0 cm, making it one of the larger species of ray.
Habitat and Occurrence
The Long-tailed Butterfly Ray (Gymnura poecilura) typically inhabits coastal waters, lagoons, and estuaries, often found in areas with sandy or muddy bottoms. This species is primarily found in the Indo-Pacific region, ranging from the Red Sea and the East African coast to the Pacific islands. They prefer shallow waters with good visibility, allowing them to easily spot prey.
Taxonomy
The species Gymnura poecilura belongs to the Class: Elasmobranchii, which includes all sharks, rays, and skates. It is further classified within the Order: Myliobatiformes, which consists of eagle rays, butterfly rays, and stingrays. The Long-tailed Butterfly Ray is a member of the Family: Gymnuridae, a family of rays characterized by their long, whip-like tails and flattened bodies.
Feeding
The Long-tailed Butterfly Ray (Gymnura poecilura) is a carnivorous species, feeding primarily on clams, crustaceans, and other invertebrates. Its powerful jaws and sharp teeth are well-suited for crushing and tearing its prey. The ray uses its sensitive electroreceptors to locate prey buried in the sand or mud, often foraging on the seabed in search of sustenance.
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