What crustaceans are in danger of becoming extinct?

Crustaceans at risk of extinction include:

- California freshwater shrimp (_Syncaris pacifica_)

- Delta smelt (_Hypomesus transpacificus_)

- Mangrove horseshoe crab (_Carcinoscorpius rotundicauda_)

- Purple hermit crab (_Pagurus samuelis_)

- Red swamp crayfish (_Procambarus clarkii_)

- Salt marsh harvestman (_Metagallienia leptonyx_)

- Shasta crayfish (_Pacifastacus fortis_)

- Smith's blue crab (_Callinectes sapidus smithii_)

- Western pond turtle (_Actinemys marmorata_)

- Yabby (_Cherax destructor_)