Dichotomous Key/Mollusca

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Dichotomous Key: Mollusca

Kingdom: Animalia

Phylum: Mollusca

Information related to Mollusca

Phyla
Parent key: Animalia
Mollusca
Key: Mollusca
Mollusca
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1

Subkingdom
Animalia keys
Agnotozoa
Phyla
Acoelomorpha \| Cnidaria \| Ctenophora \| Myxozoa \| Orthonectida \| Placozoa \| Porifera \| Rhombozoa
Superphylum:Deuterostomia
Chaetognatha \| Chordata \| Echinodermata \| Hemichordata
Superphylum:Ecdysozoa
Arthropoda \| Kinorhyncha \| Loricifera \| Nematoda \| Nematomorpha \| Onychophora \| Priapulida \| Tardigrada
Superphylum:Lophotrochozoa
Annelida \| Brachiopoda \| Ectoprocta \| Entoprocta \| Mollusca \| Nemertea \| Phoronida \| Sipuncula
Superphylum:Platyzoa
Acanthocephala \| Cycliophora \| Gastrotricha \| Gnathostomulida \| Micrognathozoa \| Platyhelminthes \| Rotifera

Presence of a foot or derived organ
- Yes - 2
- No - Aplacophora (subclass Chaetodermomorpha)

2

Torsion
- Present - Gastropoda
- Not present - 3

3

Presence of chromatophores - Can the animal change color?
- Yes - Cephalopoda
- No - 4

4

Shell divided into plates
- Yes - Polyplacophora
- No - 5

5

Segmentation
- Yes, primitive - Monoplacophora
- No - 6

Classes
Mollusca keys
Aplacophora \| Bivalvia \| Caudofoveata \| Cephalopoda \| Gastropoda \| Monoplacophora \| Polyplacophora \| Scaphopoda

6

Presence of captacula
- Yes - Scaphopoda
- No - 7

7

Shell
- Two parts - Bivalvia
- One part - Aplacophora

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