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Polyplacophora    
多板目

多板目

Polyplacophora
n 1: small class of marine mollusks comprising the chitons;
sometimes considered an order of the subclass Amphineura
[synonym: {Polyplacophora}, {class Polyplacophora}]

Isopleura \I`so*pleu"ra\, n. pl. [NL. See {Iso-}, and {Pleura}.]
(Zool.)
A subclass of Gastropoda, in which the body is symmetrical,
the right and left sides being equal.
[1913 Webster]

Note: The intestine terminates at the posterior end of the
body, and the gills and circulatory and reproductive
organs are paired. It includes the chitons
({Polyplacophora}), together with {Neomenia} and
{Ch[ae]toderma}, which are wormlike forms without a
shell.
[1913 Webster]


Placophora \Pla*coph"o*ra\ (pl[.a]*k[o^]f"[-o]*r[.a]), n. pl.
[NL., from Gr. pla`x, plako`s, tablet fe`rein to bear.]
(Zool.)
A division of gastropod Mollusca, including the chitons. The
back is covered by eight shelly plates. Called also
{Polyplacophora}. See Illust. under {Chiton}, and
{Isopleura}.
[1913 Webster]


Polyplacophora \Pol`y*pla*coph"o*ra\, n. pl. [NL. See {Poly-},
and {Placophora}.] (Zool.)
See {Placophora}.
[1913 Webster]


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  • Chiton - Wikipedia
    Chitons ( ˈ k aɪ t ən z,-t ɒ n z ) are marine molluscs of varying size in the class Polyplacophora ( ˌ p ɒ l i p l ə ˈ k ɒ f ər ə POL-ee-plə-KOF-ər-ə), [3] formerly known as Amphineura [4] About 940 [5] [6] extant and 430 [7] fossil species are recognized
  • Chitons - Examples, Anatomy, Characteristics, Diet, Pictures
    Chitons are flattened, bilaterally symmetrical mollusks armored with eight calcified plates on their shell They constitute the class Polyplacophora and are hence known as polyplacophorans Sometimes, they are also called by the names sea cradles, coat-of-mail shells, suck-rocks, and loricates
  • The Polyplacophora - University of California Museum of Paleontology
    Chitons are the familiar group of organisms that have eight valves on their shells A visit to any rocky intertidal habitat around the world will introduce one to these beautiful molluscs A Lined Chiton (Tonicella lokii)
  • Class Polyplacophora (Chitons) Information - Earth Life
    Polyplacophorans are a class of the phylum Mollusca and are commonly known as Chitons They are easily distinguishable from the superficially similar Limpets (which are part of the Gastropoda) by the fact that their shell is composed of eight separate plates, rather than being just one piece
  • ADW: Polyplacophora: INFORMATION
    Poly­pla­cophorans in­clude about 600 ex­tant species En­tirely ma­rine, they in­habit hard bot­toms and rocky coasts in all of the world's oceans Al­though com­monly in­ter­tidal, liv­ing chi­tons have been dredged from wa­ters as deep as 7000 m
  • 28. 3F: Classification of Phylum Mollusca - Biology LibreTexts
    Mollusks can be segregated into seven classes: Aplacophora, Monoplacophora, Polyplacophora, Bivalvia, Gastropoda, Cephalopoda, and Scaphopoda These classes are distinguished by, among other criteria, the presence and types of shells they possess
  • Chiton | Marine, Polyplacophora, Shell | Britannica
    Chiton, any of numerous flattened, bilaterally symmetrical marine mollusks, worldwide in distribution but most abundant in warm regions The approximately 600 species are usually placed in the class Placophora, Polyplacophora, or Loricata (phylum Mollusca) Chitons are usually oval in shape On the
  • WoRMS - World Register of Marine Species - Polyplacophora
    Monograph of living Chitons (Mollusca: Polyplacophora) Vol 2 Suborder Ischnochitonina Ischnochitonidae: Schizoplacinae, Callochitoninae Lepidochitoninae E J Brill W Backhuys eds Leiden, 198 pp
  • Discover More About Polyplacophora - ThoughtCo
    The term Polyplacophora refers to a class of marine life that are part of the mollusk family The tongue-twisting word is Latin for "many plates " The animals in this class are commonly known as chitons and they have eight overlapping plates, or valves, on their flat, elongated shells
  • Polyplacophora: from Physsalus , Oscabrion, to Chiton - Springer
    The Polyplacophora, commonly called chitons, are strictly benthic mollusks, exclusively marine, characterized by a flattened body with bilateral symmetry, presently covered by a shell formed by eight superimposed dorsal plates, imbricate and articulated





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