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PHYLUM
HEMICHORDATA
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HEMICHORDATA
• Worm like marine
animals
• Organ system level of
organisation
• Bilaterally symmetrical
• Triploblastic
• Coelomates

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Slide 3

HEMICHORDATA
• Body cylindrical
Proboscis
Collar
Trunk

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Slide 4

HEMICHORDATA

• Circulation open
• Respiration- gills
• Excretory organ –
proboscis gland

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Slide 5

HEMICHORDATA
• Sexes are separate
• Fertilization is external
• Development is indirect

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Slide 6

EXAMPLES OF HEMICHORDATA
• Belanoglossus

• Saccoglossus

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