What is "mirocaris"

Mirocaris is a genus of shrimp associated with hydrothermal vents. Sometimes considered the only genus of the family Mirocarididae, Mirocaris is usually placed in the family Alvinocarididae. The genus contains two species, M. fortunata and M. indica; the former species M. keldyshi is now considered synonymous with M. fortunata. The two species are found in different oceans, and can be distinguished by the pattern of setation on the claw of the first pereiopod.