Web3 Cartilaginous Fish Eggs. Cartilaginous fishes ( chondrichthyes) represent the oldest surviving jawed vertebrates and, as the name suggests, have a skeleton made out of cartilage. They include sharks, rays, and skates ( elasmobranchii) and chimeras ( holocephali ). Chondrichthyes have highly diversificated reproductive strategies and are ... WebNoun. 1. Chondrichthyes - cartilaginous fishes. class Chondrichthyes. Craniata, subphylum Craniata, subphylum Vertebrata, Vertebrata - fishes; amphibians; reptiles; …

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WebMar 16, 2024 · chondrichthyan, (class Chondrichthyes), also called chondrichthian, any member of the diverse group of cartilaginous fishes that includes the sharks, skates, rays, and chimaeras. The class is … WebChondrichthyes belongs to the cartilaginous fishes also known as condrichthians, because their skeleton is made up of cartilage and they also have fully developed jaws, the word condrichthyes consist of kondros means cartilage and icthyes which means fishes. downeasters

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Weba slender, blind-ended, finger-like structure that leads into the colon means of a duct; it is an organ that regulates the shark's salt balance ovary the reproductive organ of a female … WebThe class Chondrichthyes comprises almost 1050 extant species ofcartilaginous fishes, encompassing skates, sharks, rays, andchimaeras. The class contains 12 orders which are divided between 2 monophyletic subclasses, the Elasmobranchii (sharks, rays and skates) and Holocephali (chimaeras). With the Holocephali now represented by only ~40 living ... WebJul 16, 2014 · Chondrichthyes: Cartilaginous fishes • Class Chondrichthyes means ‘cartilaginous fish’ and consists of sharks, rays, skates and close relatives • They share common features: • Jaws • Cartilage skeletons, not true bone • Fatty liver used for buoyancy • Lack swim bladder • Most have placoid scales • They are great predators ... claiborne county tn map