Hermit crabs are decapods.
In the United States , writing credit for motion pictures and television programs written under the jurisdiction of the Writers Guild of America , East -LRB- WGAE -RRB- and the Writers Guild of America , West -LRB- WGAW -RRB- is determined by the Writers Guild of America -LRB- WGA -RRB- , which is composed of members of the WGAE and the WGAW .. United States. United States. Writers Guild of America. Writers Guild of America. Since 1941 , the WGA has been the final arbiter of who receives credit for writing a theatrical , television or new media motion picture written under the WGA 's jurisdiction .. motion picture. motion picture. 1941 in film. new media. new media. A production company that signs the WGA Theatrical and Television Basic Agreement -LRB- `` MBA '' -RRB- must comply with the WGA rules on writing credits .