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Crustacea By: Phil and Spencer Phylogenetic Tree of Crustacea Classification • The class crustacea fits into the phylum Anthropoda and the kingdom Animalia • To be a apart of the class Crustacea, you must have an exoskeleton that is grouped into three parts, cephalon (head), the thorax, and the pleon (abdomen) • Crustaceans have to have two antennae • Also have to have gills for breathing • Crustacea like crayfish, lobsters and crabs excrete waste similar to humans through their anus but the American lobster has have two urinary bladders on each side of their heads where they urinate from. Taxonomy for the American Lobster Kingdom Animalia Phylum Arthropoda Subphylum Crustacea Class Malacostraca Order Decapoda Family Nephropidae Genus Homarus Species Homarus americanus Taxonomy for the Japanese Spider Crab Kingdom Animalia Phylum Arthropoda Subphylum Crustaea Class Malacostraca Order Decapoda Family Inachidae Genus Macrocheira Species Macrocheira kaempferi Taxonomy of Christmas Island Red Crab Kingdom Animalia Phylum Arthropoda Subphylum Crustaea Class Malacostraca Order Decapoda Family Gecarcinidae Genus Gecarcoidae Species Gecarcoidae natalis Life Cycle of the American Lobster Pistol Shrimp Food Getting and Locomotion • Pistol Shrimps have claws they use to grab and tear their prey apart • They have a powerful tail at the end of their body that can propel them through the water Qualities of Crustacea • Crustaceans have an open circulatory system that transports substances through their bodies by a heart that pumps blood into body cavities, where tissues are surrounded by the blood • They exchange gases with gills that take in oxygen and release carbon dioxide • Many crustaceans feed on dead creatures and digest them by using stomach acid, much like humans Interesting Fact #1 • A Japanese spider crab has a 12ft leg span and can weigh up to 40 pounds Interesting Fact #2 • The Stygotantulus stocki is the smallest crustacea at 0.1mm in length Interesting Fact #3 • Lobsters can produce noises. According to the University of California, lobsters have a mechanism of producing sound similar to a violin. The lobster drags its antenna across bumps next to its eyes to create the noise. Bibliography • http://www.ehow.com/about_6292974_interestingcrustaceans.html • http://www.mesa.edu.au/crustaceans/default.asp • http://www.watsonvillewetlandswatch.org/fish.htm • http://www.zmescience.com/tag/crustacean/ • http://www2.gsu.edu/~bioasx/closeopen.html
