title: Blue lobster
text: # Blue lobster
  
  Blue lobster may refer to either:
  
  * Procambarus alleni, a blue crayfish commonly called a blue lobster
  * Cherax quadricarinatus, another blue crayfish, common in aquaria
  * Homarus gammarus, the European or common lobster, which is blue while alive (but becomes red when cooked)
  * A mutated form of the American Lobster
  