Echinoidea Matching Game

Each image can only have one answer.
The lifeform in the centerish of the image is the important one.

1)

Strongylocentrotus purpuratus
Mesocentrotus franciscanus
Dendraster excentricus

   

2)

Strongylocentrotus purpuratus
Mesocentrotus franciscanus
Dendraster excentricus

   

3)

Strongylocentrotus purpuratus
Mesocentrotus franciscanus
Dendraster excentricus

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