Kingdom: Animalia, Phylum: Echinodermata

Class: Holothuroidea

Sea cucumbers

Mouth with

tentacles

Tube feet

Papillae Anus

Class: Asteroidea

Sea stars

Eye spot

Madreporite A perforated plate by which

the entry of seawater into the

vascular system of an

echinoderm is controlled.

Ossicles

Oral surface

Aboral surface

Small calcareous

elements embedded

in the dermis of the

body wall.

Ray

(arm)

Tube feet

Ambulacral groove

Mouth

Stomach

Anus

Spines

Spines

Class: Echinoidea

Sea urchins

Tube feet

Pedicellaria

Madreporite

Anus Aboral surface

Biscuit sea star

Tosia australis

Magnificent biscuit sea star

Tosia magnifica

Eight armed, or cushion, or

spurred, or carpet sea star

Meridiastra calcar

Eleven-armed sea star

Coscinasterias muricata

Zig zag, or

granular sea star

Uniophora granifera

Grand seastar

Paranepanthia grandis

Purple sea urchin

Heliocidaris erythrogramma

Egg sea urchin

Amblypneustes ovum

Pencil urchin

Goniocidaris tubaria

Brown sea cucumber

Australostichopus mollis