PHYLUM PORIFERA

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PHYLUMPORIFERA
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Phylum Porifera- Asconoid Type Sponge
This simplest sponge type has its choanocytes
located in its spongocoel. Note buds (asexual
reproduction) and many oscula (plural of
osculum) on this slide. fig 1.3-A
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Phylum Porifera-Asconoid Type Sponge note
spicules, spongocoel, osculum bud fig 1.3-A
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Phylum Porifera- Asconoid Type Sponge
This simplest sponge type has its choanocytes
located in its spongocoel. Its also a small
sponge type. fig 1.3-A
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Phylum Porifera- Syconoid Type Sponge
An example of a syconoid-type sponge.This sponge
type has its choanocytes located in its radial
canals. Note the prominent spicules fig 1.4
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Phylum Porifera-Syconoid Type Sponge
A
a longitudinal cross-sectional view. Note
the osculum (A), spongocoel, radial canals
the choanocytes lining the radial canals. A
magnified view of a radial canal showing
individual choanocytes is included. fig 1.4
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Phylum Porifera-Syconoid Type Sponge (CS)
This is a close-up of a cross-section through the
radial canals of a syconoid-type sponge. Note the
radial canals, the choanocytes lining canals,
osculum fig 1.4
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Phylum Porifera- Leuconoid Type Sponge
These are examples of the most complex sponge
type. The choanocytes are located in the many
flagellated chambers. Any large sponge is most
likely a leuconoid- type sponge.