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elasmobranch    
n. 软骨鱼,板鳃类

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  • Elasmobranchii - Wikipedia
    Elasmobranchii ( ɪˌlæzməˈbræŋkiaɪ [1]) is a subclass of Chondrichthyes or cartilaginous fish, including modern sharks (division Selachii), and batomorphs (division Batomorphi, including rays, skates, and sawfish)
  • Elasmobranchs - Examples, Characteristics, Classification, Pictures
    These fishes are distinguished from chimaeras by five to seven pairs of gill clefts, rigid dorsal fins, and tiny placoid scales on their bodies They lack swim bladders and instead depend on large livers rich in oil for buoyancy
  • What Is An Elasmobranch? | Earth Life
    Elasmobranch skeletons comprise lightweight, flexible cartilage rather than hard bone The cartilage may be calcified for strength but lacks minerals like calcium phosphate found in bone
  • Elasmobranch - an overview | ScienceDirect Topics
    The elasmobranch fishes (class Chondrichthyes) are an ancient group, with a fossil record stretching back about 500 million years They are likely to be the earliest vertebrates with clearly differentiated parasympathetic and sympathetic components of the autonomic nervous system (Young, 1958)
  • Elasmobranch | fish subclass | Britannica
    All cartilaginous fishes—the elasmobranches (e g , sharks, rays, and skates)—employ internal fertilization and usually lay large, heavy-shelled eggs or give birth to live young The most characteristic features of the more primitive bony fishes is the assemblage of polyandrous (many males) breeding aggregations in open water and the absence…
  • What Is the Definition of an Elasmobranch? - ThoughtCo
    The term elasmobranch refers to the sharks, rays, and skates, which are cartilaginous fishes These animals have a skeleton made of cartilage, rather than bone These animals are collectively referred to as elasmobranchs because they are in the Class Elasmobranchii
  • Seasonality and relative abundance within an elasmobranch assemblage . . .
    Nearshore waters are utilized by elasmobranchs in various ways, including foraging, reproduction, and migration Multiple elasmobranch species have been previously documented in the nearshore waters of North Carolina, USA, which has a biogeographic break at Cape Hatteras on the Atlantic coast
  • ELASMOBRANCH Definition Meaning - Merriam-Webster
    The meaning of ELASMOBRANCH is any of a subclass (Elasmobranchii) of cartilaginous fishes that have five to seven lateral to ventral gill openings on each side and that comprise the sharks, rays, skates, and extinct related fishes
  • Elasmobranch - Encyclopedia of Life
    Elasmobranchii (Elasmobranch) is a subcategory of vertebrates There are 1226 species of Elasmobranch, in 205 genera and 54 families It includes groups like Modern Sharks EOL has data for 11 attributes, including:
  • Elasmobranchs: Defining Features, Diversity, and Adaptations
    Elasmobranchs are an ancient group of cartilaginous fish, including sharks, rays, and skates They have inhabited the world’s oceans for approximately 400 million years, since the Devonian period





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