Eubranchus misakiensis Baba, 1960 (basionym) Leostyletus misakiensis, common name Misaki aeolid, is a species of sea slug or nudibranch, a marine gastropod mollusc in the family Eubranchidae.

[2] This species was described from Misaki, Sagami Bay, on an Obelia colony, Japan.

Additional specimens included in the original description were from Sargassum plants at Mukaishima, Seto Inland Sea.

[1] The species has been reported from British Columbia, but it is likely that several distinct species are involved.

[3] This species is also found in the San Francisco Bay, California, and in harbors in Princeton, California and Santa Cruz, California.