1. PHYLUM HEMICHORDATA

2. HEMICHORDATA Worm like marine animals
Organ system level of organisation
Bilaterally symmetrical
Triploblastic
Coelomates

3. HEMICHORDATA Body cylindrical Proboscis Collar Trunk

4. HEMICHORDATA Circulation open Respiration- gills
Excretory organ – proboscis gland

5. HEMICHORDATA Sexes are separate Fertilization is external
Development is indirect

6. EXAMPLES OF HEMICHORDATA
Belanoglossus
Saccoglossus