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. 



