All About Rays - Different Types Of Stingrays.
Rays in the order Chondrichthyes are essentially a compressed, flattened shark. The pectoral fins are fused to the head region into a disc and, in many species, the head is raised above the disc. Most species have a long, whip-like tail and many possess at least 1 venomous spine located along the tail. On the head region, large openings or spiracles lie behind the smaller eyes and 5 gill slits.
The stingrays are a large suborder of the rays.They are cartilaginous fishes related to sharks.They are classified in the suborder Myliobatoidei of the order Myliobatiformes, and consist of nine families. Most stingrays have one or more barbed stings on the tail, which is used only for self defending. The sting may reach about 35 cm, and its underside has two grooves with venom glands.
Stingrays are a group o rays, which are cartilaginous fish relatit tae shairks.They are classifee'd in the suborder Myliobatoidei o the order Myliobatiformes an consist o aicht faimilies: Hexatrygonidae (sixgill stingray), Plesiobatidae (deepwater stingray), Urolophidae (stingarees), Urotrygonidae (roond rays), Dasyatidae (whiptail stingrays), Potamotrygonidae (river stingrays), Gymnuridae.
The round stingray or Haller's round ray (Urobatis halleri) is a species of round ray, family Urotrygonidae, found in the coastal waters of the eastern Pacific Ocean. It is a small, common ray that feeds mostly on benthic invertebrates.
The ideal stingray environments are benthic zones with sandy or muddy bottoms, seagrass beds and reefs. The benthic zone is the lowest section of water and includes the upper sediment layers of the ocean floor. Stingrays will often sit for long periods, partially buried in the top layers of sand or mud. Coastal species move in and out with the tides.
They get the name stingray because of their venomous spine located on their tail. This tree is based on morphological characteristics that separate the different orders of Rays. The Pristiformes are the only rays with a saw-like nose. The Rhinobatiformes and Torpediniformes have their 2 dorsal fins closer to the pelvic fins. Rajiformes and.
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