Facetotecta

Facetotecta is a poorly known subclass of thecostracan crustaceans. The adult forms have never been recognised, and the group is known only from its larvae, the "y-nauplius" and "y-cyprid" larvae. They are mostly found in the north Atlantic Ocean, neritic waters around Japan, and the Mediterranean Basin, where they also survive in brackish water.

Facetotecta
A Y-psigon escaping from its y-cyprid
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Thecostraca
Subclass: Facetotecta
Grygier, 1985
Family: Hansenocarididae
Itô, 1985
Genus: Hansenocaris
Itô, 1985
Species

See text

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