This image provided by the New England Aquarium shows a one-pound female lobster, known as a "split," that was caught by a Massachusetts fisherman last week and arrived at the aquarium

 

              This image provided by the New England Aquarium shows a one-pound female lobster, known as a "split," that was caught by a Massachusetts fisherman last week and arrived at the aquarium
This image provided by the New England Aquarium shows a one-pound female lobster, known as a "split," that was caught by a Massachusetts fisherman last week and arrived at the aquarium in Boston on Halloween, Wednesday, Oct. 31, 2012. Officials say such rare Halloween coloration is estimated to occur once in every 50 million lobsters. (AP Photo/New England Aquarium, Emily Bauernseind)