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mollusca    
n. 软体动物类

软体动物类

Mollusca
n 1: gastropods; bivalves; cephalopods; chitons [synonym:
{Mollusca}, {phylum Mollusca}]

Mollusca \Mol*lus"ca\, prop. n. pl. [NL. See {Mollusk}.] (Zool.)
One of the grand divisions of the animal kingdom, a phylum
including the classes Cephalopoda, Gastropoda, Pteropoda,
Scaphopoda, and Pelecyopoda (syn. Bivalvia, formerly called
Lamellibranchiata, or Conchifera). These animals have an
unsegmented bilateral body, with most of the organs and parts
paired, but not repeated longitudinally. Most of them develop
a mantle, which incloses either a branchial or a pulmonary
cavity. They are generally more or less covered and protected
by a calcareous shell, which may be univalve, bivalve, or
multivalve.
[1913 Webster PJC]

Note: Formerly the Brachiopoda, Bryzoa, and Tunicata were
united with the Lamellibranchiata in an artificial
group called Acephala, which was also included under
Mollusca. See {Molluscoidea}.
[1913 Webster]


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  • Mollusca - Wikipedia
    Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat, as numerous groups are freshwater and even terrestrial species
  • Mollusk | Definition, Characteristics, Shell, Classification, Facts . . .
    mollusk, any soft-bodied invertebrate of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body
  • Mollusk - Definition, List, Examples, Characteristics, and Image
    Mollusks or Molluscs are a group of soft-bodied invertebrates distributed across marine, freshwater, and terrestrial habitats They belong to the phylum Mollusca, the second largest after Arthropoda, with around 76,000 extant species worldwide, accounting for around 23% of all marine species
  • 20 Types of Mollusks: Species, Facts and Photos - TRVST
    Discover the varied types of mollusks and their ecological roles in this article, from pearl-producing oysters to the unique sea butterfly and even the venomous blue-ringed octopuses Mollusks represent an incredibly diverse phylum in the animal kingdom, second only to arthropods
  • 14. 4: Phylum Mollusca - Biology LibreTexts
    Phylum Mollusca is a very diverse (85,000 species) group of mostly marine species Mollusks have a dramatic variety of form, ranging from large predatory squids and octopus, some of which show a high degree of intelligence, to grazing forms with elaborately sculpted and colored shells
  • Phylum Mollusca- characteristics, classification, examples - Microbe Notes
    Molluscs (also know as mollusks) are soft-bodied, bilaterally symmetrical, segmented, coelomate animals; usually shelled having a mantle, ventral foot, anterior head, and a dorsal visceral mass They are essentially aquatic mostly marine, few freshwater and some terrestrial form
  • Phylum Mollusca – Classification, Definition, Characteristics, Examples
    Mollusca, commonly known as mollusks, is a large phylum of invertebrate animals characterized by a soft body that is often protected by a hard shell This diverse group includes species such as snails, slugs, clams, octopuses, and squids
  • Phylum Mollusca | manoa. hawaii. edu ExploringOurFluidEarth
    The phylum Mollusca is the second-largest animal phylum, with over 100,000 species The molluscs include many familiar animals, including clams, snails, slugs, and squid, as well as some less familiar animals, like tusk shells and chitons (Fig 3 51 A)
  • Mollusca Characteristics - BYJUS
    The animals belonging to the phylum Mollusca have soft-bodies, triploblastic and bilaterally symmetrical and coelomate The study of Mollusca is called Malacology They are sluggish invertebrates, with a thin fleshy envelope or mantle covering the visceral organs
  • PHYLUM MOLLUSCA – Characteristics and Classification
    Phylum Mollusca is a major taxonomic group in the kingdom Animalia, comprising over 85,000 recognized species, with many more awaiting discovery The name “Mollusca” originates from the Latin word “mollis,” meaning soft, reflecting the typically soft-bodied nature of these organisms





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