It is said that the largest rattlesnake on the planet is the Eastern diamondback. The record length for this venomous snake is 96 inches.
Tim Manning, Herp.
If you "Google" "Texas" you will see a man with a 9 ft 1 inch 90 lb rattler.it was at Tow, Texas off hwy 281. Northern tip of Lake Buchanan 2007
The supposed 15 foot Eastern Diamondback rattlesnake was not 15 feet long. It was 7 foot and 3 inches and was found in Sept 2009. The largest Eastern Diamondback rattlesnake on record in 8 feet long. None have been found longer. Skins can be deceptive as they can be longer when shed from the snake.
See the related link for a picture of a 14' Western Diamondback rattler taken in Happy Camp, CA., on the weekend of 9/11/10 by a' good friend of mine.
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In Mid July, 2010, a rattlesnake was found near Whitwell, TN that measured:
14ft 9in, 24 rattles, 2 buttons, and 100lbs.
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There has never been a rattlesnake over eight feet long anywhere. But, there are many hoaxes. The eight footer was killed in Carteret County, North Carolina, in 1959.
The largest reported measurement for a western diamondback rattlesnake is 92.5 inches (Jones, 1997)
The largest Timber Rattlesnake ever recorded was 74.5 inches
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eastern diamond 8.7 feet in lenght,found in the Florida marsh. Update March 2009 15 foot Eastern Diamondback rattlesnake killed in Florida. The world record is 96 inches (8 feet) killed in NC in 1959.
Yes, it is the largest venomous snake in Florida.
The largest timber rattler was 74 and a half inches in length.
West Palm Beach Fl
The maximum reported total length is 189.2 cm (74.5 in) (Klauber, 1956). Holt (1924) mentions a large specimen caught in Montgomery County, Alabama, which had a total length of 159 cm (62.6 in) and weighed 2.5 kg (5.5 lb). Large specimens can reportedly weigh as much as 4.5 kg (9.9 lb).
The largest known to have been reported was six feet in length. Most "large snakes" are often reported but never confirmed. The Timber rattler is usually an average of three to four feet in length. The Tennessee Outdoorsman (see related link) is reporting a large snake killed recently and is working to confirm its actual size, it may be a new record for the state.
The eastern diamondback is the largest venomous snake in North America, with a North Carolina specimen of eight feet being the record. This snake is found from North Carolina to Louisiana, but it is rare in those two states. Usually found in coastal pine forests, and will share burrows with gopher tortoises.
The Eastern Diamondback, which is found in the southern boot heel of Mississippi.
None..The western diamomdback is the largest desert snake.