Aspiraculata

The order Aspiraculata is in the class Ascidiacea. It describes a group of marine animals. The Hexacrobylidae is the only family of the Aspiraculata.

This family includes the genera:

* "Gasterascidia"
**"Gasterascidia lyra"
**"Gasterascidia sandersi"
* "Hexadactylus"
**"Hexadactylus arcticus"
**"Hexadactylus eunuchus"
**"Hexadactylus ledanoisi"
* "Oligotrema"
**"Oligotrema lyra"
**"Oligotrema psammites"
* "Sorbera"
**"Sorbera unigonas"
**"Sorbera digonas"