Tethydidae
# Tethydidae

Tethydidae is a family of dendronotid nudibranch gastropod mollusks in the superfamily Tritonioidea.

The original spelling (subfamily) is Tethydia. It was placed on the Official List by Opinion 1182 of ICZN (1981: 174), which also ruled that the name should be corrected to Tethydidae (Bouchet & Rocroi, 2005).

## Taxonomy

This family is within the clade Cladobranchia and has no subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

## Genera

There are two genera within the family Tethydidae:

* Melibe Rang, 1829
* Tethys Linnaeus, 1767 - the type genus,

### Genera brought into synonymy

* Chioraera Gould, 1852 accepted as Melibe Rang, 1829
* Fimbria O'Donoghue, 1926: synonym of Tethys Linnaeus, 1767 (invalid: junior homonym of Fimbria Megerle, 1811.)
* Jacunia de Filippi, 1867 accepted as Melibe Rang, 1829
* Melibaea synonym of Melibe Rang, 1829
* Meliboea [sic] : Melibe Rang, 1829 (incorrect subsequent spelling [by Forbes, 1838] of Melibe Rang, 1829)
* Propemelibe Allan, 1932 accepted as Melibe Rang, 1829

## Description

Species in this family do not possess a radula.

