Xenoturbella japonica

Xenoturbella japonica
X. japonica holotype female. The white arrowhead indicates the ring furrow.
Scientific classification
Kingdom: Animalia
Phylum: Xenacoelomorpha
Family: Xenoturbellidae
Genus: Xenoturbella
Species:
X. japonica
Binomial name
Xenoturbella japonica
Nakano, Miyazawa, Maeno, Shiroishi, Kakui, Koyanagi, Kanda, Satoh, Omori & Kohtsuka, 2018

Xenoturbella japonica is a marine benthic worm-like species that belongs to the family Xenoturbellidae. It was discovered in the western Pacific Ocean by a group of Japanese scientists from the University of Tsukuba. The species was described in 2017 in a study published in the journal BMC Evolutionary Biology and amended in 2018.

Xenoturbella japonica is known for lacking respiratory, circulatory, and excretory systems.