phylum echinodermata - scamit 2015-11-03آ  phylum echinodermata class asteroidea subclass...

Download Phylum Echinodermata - SCAMIT 2015-11-03آ  Phylum Echinodermata Class Asteroidea Subclass Perischoechinoidea

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  • Phylum Echinodermata Class Asteroidea

    Subclass Perischoechinoidea Superorder Gnathostomata

    Order Clypeasteroida Suborder Scutellina

    Family Dendrasteridae

    Dendraster terminalis

    Coloration: Pale white with botchy green

    Type of Urchin: Sanddollar

    Defining Characteristics:

    Petaloid area remarkably small Primary spines are short and slender Spines are knobbed at the tip

    - Pedicellariae very small - Edge of test is very thin

    Illustration