If you look in the records there is a lot of controversy over which snake holds the world's record for massive size. The dimensions that have earned the anaconda the title of king is its total body mass or its weight (the sheer physical bulk of it).The largest anaconda ever measured was almost 28 feet long with a girth of 44 inches. She wasn't weighed at the time she was caught, but scientists estimate that she must have weighed over 500 lbs. The other snake that competes with the anaconda is the Asiatic Reticulated Python (Python reticulatus). Thepython holds the world's record for length of a snake, with the longest ever measured at 33 feet. Even though the longest python is longer than the record-holding anaconda, the girth of the anaconda is far bigger. Anacondas in the jungles of South America can grow as big around as a grown man!