There is only one species in this order,
Amphionides reynaudii. It is a small crustacean, less than an inch in length, found in warm tropical ocean waters around the world.
The larvae are usually found in shallow waters at depths less than 300 feet, while the adult is found in deeper waters at depths between 2,000 and 5,500 feet.
It is a planktonic species. Planktonic species are usually small and float and drift in open ocean waters along with the currents.
At one point, Amphionides reynaudii was thought to be a shrimp species because it had only been observed in its larval stage. It was placed in its own order in 1973.
World Status Key
Least Concern Near Threatened Vulnerable Endangered Critically Endangered Extinct in the Wild Extinct
Status and range is taken from ICUN Redlist. If no status is listed, there is not enough data to establish status.
US Status Key
Threatened in US Threatened in NH Endangered in US Endangered in NH Breeds in NH Introduced
Status taken from US Fish and Wildlife and NH Fish and Game
New Hampshire Species
North/Central American Species
Key: Profile Photos Video Audio
Amphionides reynaudii looks like a flea.
Source: Animal Diversity Web Intended Audience: General Reading Level: Middle School