Crustaceans and Echinoderms

Echinoderms and crustaceans are both able to reginerate. An echinoderm can reginerate legs as long as part of the center is left. When crustaceans lose a claw, the left over one takes its place and a new one is grown.

Video link: http://video.nationalgeographic.com/video/player/animals/invertebrates-animals/other-invertebrates/sea_urchin_breeding.html

Differences:

  Echinoderms -

• Name means "spiky skin
• Radial symmetry
• Endoskeleton
• Calcium carbonate skeletal system
• Don't molt
• Cool video link

  Crustaceans -

• Name means "jointed feet"
• Bilateral symmetry
• Exoskeleton
• Chitin skeletal system
• Molt

Crustaceans

Yeti Crab 



http://bioweb.uwlax.edu/bio203/s2009/decker_rour/taxonomy.htm

 

Kingdom - Animalia
Phylum - Arthropoda
Class - Malacostraca

Order - Decapoda

Family - Kiwaidae
Genus - Kiwa
Species - hirsuta

Japanese Spider Crab



http://www.buzzle.com/articles/japanese-spider-crab.html

Kingdom - Animalia

Phylum - Arthropoda

Class - Malacostraca

Order - Decapoda

Family - Inachidae

Genus - Macrocheira
Species - kaempferi

Squat Lobster (one species)



http://www.bio.umass.edu/biology/kunkel/fish/Kunkel_Fish_LifeList.html



Kingdom - Animalia

Phylum - Arthropoda

Class - Malacostraca

Order - Decapoda

Family - Chirostylidae

Genus - Eumunida

Species - picta

Echinoderms

Sea Urchin (one species)



http://wamuseum.com.au/dampier/explore_echinoderm_seaurchin.asp



Kingdom - Animalia

Phylum - Echinodermata

Class - Echinoidea

Order - Cidaroida

Family - Cidaridae

Genus - Prionocidaris

Species - baculosa

Firebrick Starfish



http://www.britannica.com/EBchecked/media/55563/Firebrick-starfish

Kingdom - Animalia
Phylum - Echinodermata
Class - Asteroidea
Order - Valvatida
Family - Asterodiscididae
Genus - Asterodiscides
Species - truncatus












Eccentric Sand Dollar
 

http://echinoblog.blogspot.com/2010/08/cloning-as-sand-dollar-defense-why-run.html



Kingdom - Animalia
Phylum - Echinodermata
Class - Echinoidea
Order - Clypeasteroida
Family - Dendrasteridae
Genus - Dendraster
Species - excentricus