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porifera    
多孔动物门

多孔动物门

Porifera
n 1: coextensive with the subkingdom Parazoa: sponges [synonym:
{Porifera}, {phylum Porifera}]

Spongiae \Spon"gi*ae\ (sp[o^]n"j[i^]*[=e]), n. pl. [See
{Sponge}.] (Zool.)
The grand division of the animal kingdom which includes the
sponges; -- called also {Spongida}, {Spongiaria},
{Spongiozoa}, and {Porifera}.
[1913 Webster]

Note: In the Spongiae, the soft sarcode of the body is
usually supported by a skeleton consisting of horny
fibers, or of siliceous or calcareous spicules. The
common sponges contain larger and smaller cavities and
canals, and numerous small ampullae which are lined
with ciliated cells capable of taking in solid food.
The outer surface usually has minute pores through
which water enters, and large openings for its exit.
Sponges produce eggs and spermatozoa, and the egg when
fertilized undergoes segmentation to form a ciliated
embryo.
[1913 Webster]


Porifera \Po*rif"e*ra\, n. pl. [NL., fr. L. porus pore ferre
to bear.] (Zool.)
A grand division of the Invertebrata, including the sponges;
-- called also {Spongi[ae]}, {Spongida}, and {Spongiozoa}.
The principal divisions are Calcispongi[ae], Keratosa or
Fibrospongi[ae], and Silicea.
[1913 Webster]


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  • Sponge - Wikipedia
    The scientific name Porifera is a neuter plural of the Modern Latin term porifer, which comes from the roots porus meaning "pore, opening", and -fer meaning "bearing or carrying"
  • Phylum Porifera- Characteristics, classification, examples
    Porifera are all aquatic, mostly marine except one family Spongillidae which lives in freshwater They are sessile and sedentary and grow like plants The body shape is vase or cylinder-like, asymmetrical, or radially symmetrical
  • Sponge | Definition, Features, Reproduction, Facts | Britannica
    Sponge, any of the primitive multicellular aquatic animals that constitute the phylum Porifera They number approximately 5,000 described species and inhabit all seas, where they occur attached to surfaces from the intertidal zone to depths of 8,500 metres (29,000 feet) or more
  • Phylum Porifera | manoa. hawaii. edu ExploringOurFluidEarth
    Sponges are simple invertebrate animals that live in aquatic habitats Although the majority of sponges are marine, some species live in freshwater lakes and streams They are found in shallow ocean environments to depths as great as five kilometers (km)
  • Introduction to Porifera
    The approximately 5,000 living sponge species are classified in the phylum Porifera, which is composed of three distinct groups, the Hexactinellida (glass sponges), the Demospongia, and the Calcarea (calcareous sponges)
  • Porifera (sponges) | INFORMATION | Animal Diversity Web
    Sponges are a diverse group of sometimes common types, with about 5000 species known across the world Sponges are primarily marine, but around 150 species live in fresh water
  • 28. 1A: Phylum Porifera - Biology LibreTexts
    Phylum Porifera (“pori” = pores, “fera” = bearers) are popularly known as sponges Sponge larvae are able to swim; however, adults are non-motile and spend their life attached to a substratum through a holdfast
  • Porifera - Animalia
    Sponges(also known as sea sponges), the members of the phylum Porifera(; meaning 'pore bearer'), are a basal animal clade as a sister of the diploblasts They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells
  • Sea Sponges or Porifera - Definition, Types, Reproduction, and Examples . . .
    Sea sponges (Porifera) are ancient marine animals that shape ocean ecosystems through their unique filtering abilities Learn about their types, reproduction methods, and more
  • 28. 1 Phylum Porifera - Biology 2e | OpenStax
    Sponges are members of the phylum Porifera, which contains the simplest invertebrates (credit: Andrew Turner) There are at least 5,000 named species of sponges, likely with thousands more yet to be classified





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