(Photo and article courtesy of Dick Allen)
Just I thought I sorted out this problem and this one pop up. It was caught 1926 in Maine and had weight of 23.36kg (51.5pound) and total length of 1.28m (50.5in) or 83.8cm (33in) nose to tail. Amazing beast.
Sources: Woods Hole Oceanographic Institution
See more: The American lobster - largest arthropod recorded