Dichotomous Key/Octopoda

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Dichotomous Key
Octopoda
Kingdom Animalia
Phylum Mollusca
Class Cephalopoda
Subclass Coleoidea
Superorder Octopodiformes
Order Octopoda

1

  • Cornea
    • Present - 2
    • Not present - 3

2: Incirrata

  • Detachable hectocotylus
    • Present - 5
    • Not present - 6

3: Cirrata

4

5: Argonautoida

  • Tissue consistency
    • Gelatinous - 10
    • Muscular - 9

6

7

8

9

  • Web
    • Absent or greatly reduced except in four dorsal arms - Tremoctopodidae
    • Consistent - 11

10

11