The woman saw the snake Monday while walking her dog near an apartment complex on Anna Maria Island. After her husband saw the serpent, they called Wildlife Inc., an animal rescue organization, the Sarasota Herald-Tribune reported Tuesday.
"We don't know whether it's a Burmese python or not," said Damen Hurd of Wildlife Inc. "It sounds to me like it was a boa constrictor or a python but we won't know until we find it."
Hurd said the snake is most likely a lost pet because pythons are not native to Florida.
Wildlife Inc. rescuers searched the area for three hours but were unable to find the snake. They said they'd wait to search again until the animal is spotted a second time.
"We searched that entire area," Hurd said. "It's somewhere out there still."