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Tuesday, March 15, 2011

Crustaceans and Echinoderms

Differences in Crustaceans and Echinoderms:
-Echinoderms have a spiky skin with an endoskeleton, while Crustaceans have a hard outer skeleton, Exoskeleton.
-Crustaceans molt, which means when they grow and when their about to shed their exoskeleton they reatian extra water to break the old exoskelton for the new one to harden. Since Endoskeletons, have their skeleton grow with them you often find 'tests' left on the beach when they die.
-Echinoderms have radial symmetry, while Crustations have Bilateral symmetry.

Simularities in Crustaceans and Echinoderms:
- The only simularity is that the Echinoderm's larvae has Bilateral symmetry, just like the Crustaceans.

Pictures of Echinoderms:
http://www.sciencephoto.com/images/download_lo_res.html?id=670054840
Download now
Above is a picture of Bilateral symmetry of a Echinoderm's Larvae.

http://fineartamerica.com/featured/common-starfish-jessica-winder.html


Above is a Starfish.
Kingdom: Animalia
Phylum: Echinodermata
Class: Asteroidea
Order: Forcipulatida
Family: Asteriidae
Genus: Asterias
Species: Asterias Rubens


Sea Cucumbers - Holothuroidea - Seewalzen / Seegurken: Species on this page: Synaptula, Opheodesoma, Euapta, Holothuria, Bohadschia, Stichopus, Stichopus, Thelenota, Pentacta, Pseudocolochirus, Neothyonidium
Above is a Sea Cucumber.
Kingdom: Animalia
Phylum: Echinodermata
Class: Holothuroidea
Order: Aspidochirotida
Family: Holothuriidae
Genus: Holothuria
Species: Holothuria Pardalis
Pictures of Crustaceans:

http://www.dpughphoto.com/crustaceans,_mollusks.htm

Above is a picture of a Ghost Crab.
 Kingdom: Animaliahttp://thehumorlessfeminist.tumblr.com/post/1145876585/today-is-brought-to-you-by-the-peacock-mantis
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Family: Ocypodidae
Genus: Ocypode
Species: Cancer Ceratophthalmus


Above is a Peacock Matis Shrimp.
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Stomatopoda
Family: Odontodactylidae
Genus: Odontodactylus
Species: Odontodactylas Scyllarushttp://www.sealordphotography.net/Food/seafood/European-shellfish/3659967_GS7e8/1/103527860_ou2sh

This European lobster, Homarus gammarus, entered a Clive Brown lobster pot off the south coast of Guernsey on the 17 November 1998. What makes this lobster so unusual is that it is a double-crusher clawed lobster. Nearly all lobsters have one crusher claw and one pincer claw. Double-crusher clawed lobsters are rarer than double-pincer clawed lobsters. File No. 35-252 ©RLLord fishinfo@guernsey.net
 Above is a Eurupean Clawed Lobster.
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Family: Nephropidae
Genus: Homarus
Species: Homarus Gammarus

Cool Video: Check it out!
http://video.google.com/videoplay?docid=-5219672612991804355#docid=7933887031585756957
Matis Shrimp Vs. Crab! See who wins! http://www.starfish.ch/c-invertebrates/seewalzen.html
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