Lab5b-CrustaceanArthropods甲壳动物亚门

Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,2/17/13,#,Crustacean Arthropods,Subphylum Crustacea,Unique characteristics,Gill-breathing,Two pairs of antennae,Two pairs of maxillae,“Crayfish”Class MalacostracaOrder Decapoda,Very similar except in size,Crawfish=crawdads=mudbuggies,Found in freshwater streams and pounds throughout the world,360 sp.Of crayfish in the U.S,Southern Gulf Coast=largest number of species,Omnivorous,Hardy,Crayfish farms,also sold at bait shops,Exoskeleton=chitin,Grow by molting=ecdysis,Cephalothorax-covered by carapace,Gills,Rostrum,stalked eyes,two pairs of antennae,Abdomen=6 segments,first five bear swimmerettes,*function of specific appendages on pg.215,More Characteristics of,“Crayfish”Class MalacostracaOrder Decapoda,Class MaxillopodaSubclass Cirripedia“Barnacles”,Easily mistaken for molluscs because of CaCO3 shell,BUT,has 6-piece shell w/6 pairs biramous appendages,Filter feeders,Barnacles-Subclass cirripedia,Barnacles-Subclass Cirripedia,*Note the cirri(what other organisms that we know of has cirri?),Fun fact!Barnacles have the longest penis to body ratio in the entire animal kingdom,Copepods-Class Maxillopoda Subclass Copepoda,Subphylum CrustaceaClass MalacostracaOrder Isopoda,Crabs-Class Malaocostraca,Class MalacostracaOrder StomatodaGenus,Squilla,“Mantis Shrimp”,Capable of breaking shells of Mollusks using“raptorial appendage”,Clocked as one of most powerful crustaceans for size-to-force ratio,Check out this video!,Fairy Shrimp-Class Branchiopoda Order Anostraca,Water Flea-Class BranchiopodaOrder Cladocera,Daphina-,commonly used for ecotoxicology studies,