Bull. U. S. B. F., 1909. 
Plate XXIX 
Male lobster ( Homarus gammarus ) with symmetrical claws, and both of crusher type. The 
first specimen of the kind, living under natural conditions, to be definitely recorded. 
For figure of lobster with both claws of toothed type see no. 140 of bibliography, pi. 14. 
Stromness, Orkney Islands; weight, 4 pounds 10 ounces. Reproduced from photograph 
by Dr. W. T. Caiman. 
