Dichotomous Key/Hirudinea

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Dichotomous Key: Annelida
Kingdom: Animalia Phylum: Annelida Annelida keys Order Gnathobdellae | Pharyngobdellae Family Order:Rhynchobdellae: Glossiphoniidae | Pisciolidae

[edit] 1

• Reversible proboscis
  • Present - #3: Rhynchobdellae
  • Not present - #2:Arhynchobdellae

[edit] 2

• Teeth
  • Present - Gnathobdellae
  • Not present - Pharyngobdellae

[edit] 3: Rhynchobdellae

• Body shape
  • Flat - Glossiphoniidae
  • Cylindrical - Pisciolidae