Title Available As Summary Date ID Author
Sustaining America's Aquatic Biodiversity - Crayfish Biodiversity and Conservation
Of the approximately 500 crayfishes (some times called crawdads or crawfish) found on earth, about 400 crayfish species live in waters in North America, and about 353, nearly 70 percent of the world’s total species, inhabit waters in the United States.
May 1, 2009 420-524