Two illegal marsupials — an opossum and a sugar glider possum — and a snake were found Monday on Oahu.

At Ward Centre a young opossum was found in a shipping container at a retail store at about 7:30 a.m. Workers unloading the container spotted the animal, immediately closed the container and notified the police, state agriculture officials said.

Responding police officers captured the 11⁄2-pound animal and turned it over to state agricultural personnel. The animal, native to North America, is now being tested for rabies because it could be a carrier of parasites and diseases.

Opossums are omnivorous, with diets that range from insects to fruits and vegetables.

In 2005 an opossum was found inside a military cargo plane at Hickam Air Force Base, and a second in the mail receiving area of the U.S. Postal Service facility at Honolulu Airport.

Also Monday, a 3- to 4-inch sugar glider was turned over to the Hawaiian Humane Society through its amnesty program. The owner, who voluntarily surrendered the animal at the Moiliili shelter, will not be penalized.

It is the second sugar glider to be handed over in two weeks. After police went to a Kaneohe home on a tip, the owner agreed to turn over that animal.

Sugar gliders are native to Australia and, like the opossum, are illegal in Hawaii. Marsupials are mammals that carry their young in a pouch.

On Monday night, police from the Kapolei substation received a call from an Ewa Beach resident who reported finding what appeared to be a 9-inch snake.

Officers were calling in the report of the snake, reported to be in a plastic bag, to agriculture officials.

Anyone with illegal animals is urged to turn them in under the state’s amnesty program, which provides owners immunity from prosecution.