Marine Ecology ML: Crustaceans and Echinoderms

!Echinoderms!

- Skeleton is on the inside

- The endoskeleton (what you find on the beach) is called a test

- Their spiny skin is made of calcium carbonate

-They have NO body segments

- They have Radial Symmetry

*Crustaceans*

- They have segmented appendages

- They all have five pairs of legs!

- In most, the first pair is claws

- In others, they have walking legs

- They have bilateral symmetry

Pictures of Echinoderms!

http://www.graphicmania.net/wp-content/uploads/sea-star-pair-758303-ga.jpg
K - Animal
P - Echinoderm
C- Asteroidea
O - Forcipulatida
F - Asteriidae
G - Pycnopodia
S - helianthoides

K - Animal

P - Echinoderm

C - Holothuroidea

O - Aspidochirotida

F - Holothuriidae

G - Holothuria

S - Holothuria pardalis

Pictures of Crustaceans!

K - Animalia
P - Arthropoda
S - Crustacea
C - Malacostraca
O - Decapoda
I - Anomura
F - Coenobitidae
G - Coenobita
S - C. clypeatus

K - animal
P - arthropoda

C - Malacostraca

O - Decapoda
F - Nephropidae

G - Enoplometopus
S - lobster

K - Metazoa

P - Arthropoda

C - Malacostraca

O - Decapoda

F- Ocypodidae

G - Ocypode

S - Ocypode quadrata

Marine Ecology ML