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Hirudinea    
蛭纲

蛭纲

Hirudinea
n 1: hermaphroditic aquatic or terrestrial or parasitic annelids
[synonym: {Hirudinea}, {class Hirudinea}]


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  • Leech - Wikipedia
    Leeches are segmented parasitic or predatory worms that comprise the subclass Hirudinea within the phylum Annelida They are closely related to the oligochaetes, which include the earthworm, and like them have soft, muscular segmented bodies that can lengthen and contract
  • Leech | Annelid, Bloodsucking Parasite Medicinal Uses | Britannica
    Leech, (subclass Hirudinea), any of about 650 species of segmented worms (phylum Annelida) characterized by a small sucker, which contains the mouth, at the anterior end of the body and a large sucker located at the posterior end
  • Hirudinea - an overview | ScienceDirect Topics
    The Hirudinea, or true leeches, are highly specialized clitellates, separated from other annelid groups by the presence of an anterior circumoral sucker and a posterior ventral sucker They represent a relatively small monophyletic group of annelids
  • Hirudinea (Leeches) - Encyclopedia. com
    Leeches are subdivided first into suborders based on anatomical adaptations for feeding The Rhynchobdellida, as their name implies, have a muscular proboscis that allows them to feed on blood drawn from tissues beneath an organism's skin that are well supplied by blood vessels
  • Leeches (Subclass Hirudinea) - iNaturalist
    Leeches are segmented worms that belong to the phylum Annelida and comprise the subclass Hirudinea Like the oligochaetes, such as earthworms, leeches share a clitellum and are hermaphrodites Nevertheless, they differ from the oligochaetes in significant ways
  • HIRUDINEA Definition Meaning | Merriam-Webster Medical
    The meaning of HIRUDINEA is a class of hermaphroditic aquatic, terrestrial, or parasitic annelid worms distinguished by a coelom nearly obliterated by connective tissue and reduced to a series of vascular sinuses, by modification of the hindmost segments into a sucking disk, and by the absence of parapodia and setae
  • Leeches and Their Use in Medicine (Annellida: Hirudinea . . .
    In leech saliva, in addition to substances that prevent blood clotting, there are also analgesic and anesthetic compounds that reduce pain This article aims to study the characteristics of the leech (Annellida: Hirudinea: Rhynchobdelliformes) and its use in Medicine
  • WoRMS - World Register of Marine Species - Hirudinea
    Système des annélides, principalement de celles des côtes de l'Égypte et de la Syrie, offrant les caractères tant distinctifs que naturels des Ordres, Familles et Genres, avec la Description des Espèces
  • Chapter XXVI —Class Hirudinea - Chebucto
    The class Hirudinea in the phylum Annelida (segmented worms) comprises the leeches, the most highly specialized of the major annelid groups Table XXVI-1: Phylum Annelida (Mackie, 1998)
  • Hirudinea | definition of Hirudinea by Medical dictionary
    Hirudinea a class of the phylum Annelida that includes the leeches, those worms which lack chaetae or parapodia, have an apparent external segmentation much greater than the small number of internal segments and possess suckers for attachment Most species feed on blood





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