Of the nearly 500 species of crayfish found in the world, approximately 350 are found in the United States, that’s nearly 70 percent of the world’s crayfish fauna - most of which is concentrated in the southeast.
Of the nearly 500 species of crayfish found in the world, approximately 350 are found in the United States, that’s nearly 70 percent of the world’s crayfish fauna - most of which is concentrated in the southeast.