アメリカアリゲーター
During the 19th and 20th centuries, larger males reaching have been reported. The largest reported individual size was a male killed in 1890 on Marsh Island, Louisiana, and reportedly measured at in length, but no voucher specimen was available, since the American alligator was left on a muddy bank after having been measured due to having been too massive to relocate. If the size of this animal was correct, it would have weighed about . In Arkansas, a man killed an American alligator that was and . The largest American alligator ever killed in Florida was , as reported by the Everglades National Park. The largest American alligator scientifically verified in Florida for the period from 1977 to 1993 was reportedly and weighed , although another specimen (size estimated from skull) may have measured . A specimen that was long and weighed is the largest American alligator killed in Alabama and has been declared the SCI world record in 2014.