# Phyllidiopsis

Phyllidiopsis is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod molluscs and is the largest genus within the family Phyllidiidae.

## Description

The species in this genus differ from the other genera in this family by possessing an elongate foregut and fused oral tentacles.

## Distribution

These nudibranchs can be found in the tropical Indo-Pacific region, the eastern Pacific region, in the Red Sea, in the Caribbean Sea and a few in the Northwest Atlantic Ocean. About half of the described species can be found in deep waters. Among these deep-water sea slugs, there is a group of white species, lacking all contrasting colors.

## Species

There are presently about 30 species in the genus Phyllidiopsis including :
* Phyllidiopsis annae Brunckhorst, 1993
* Phyllidiopsis anomala Valdés, 2001
* Phyllidiopsis bayi (Bouchet, 1983)
* Phyllidiopsis berghi Vayssière, 1902
* Phyllidiopsis blanca Gosliner & Behrens, 1988
* Phyllidiopsis boucheti Valdes & Ortea, 1996
* Phyllidiopsis brunckhorsti Valdés, 2001
* Phyllidiopsis burni Brunckhorst, 1993
* Phyllidiopsis cardinalis Bergh, 1876 : type species of the genus Phyllidiopsis
* Phyllidiopsis circularis Valdés, 2001
* Phyllidiopsis crucifera Valdés, 2001
* Phyllidiopsis dautzenbergi (Vayssière, 1912)
* Phyllidiopsis fissurata Brunckhorst, 1993
* Phyllidiopsis futunai Valdés, 2001
* Phyllidiopsis gemmata Pruvot-Fol, 1957
* Phyllidiopsis holothuriana Valdés, 2001
* Phyllidiopsis krempfi Pruvot-Fol, 1957
* Phyllidiopsis loricata (Bergh, 1873)
* Phyllidiopsis lozoueti Valdés, 2001
* Phyllidiopsis macrotuberculata Valdés, 2001
* Phyllidiopsis monacha (Yonow, 1986)
* Phyllidiopsis neocaledonica Valdés, 2001
* Phyllidiopsis phiphiensis Brunckhorst, 1993
* Phyllidiopsis pipeki Brunckhorst, 1993
* Phyllidiopsis quadrilineata (Bergh, 1905)
* Phyllidiopsis richeri Valdés, 2001
* Phyllidiopsis shireenae Brunckhorst, 1990
* Phyllidiopsis sinaiensis (Yonow, 1988)
* Phyllidiopsis sphingis Brunckhorst, 1993
* Phyllidiopsis vanuatuensis Valdés, 2001
* Phyllidiopsis xishaensis (Lin, 1983)

### Species brought into synonymy

* Phyllidiopsis carinata Eliot, 1910 : synonym of Phyllidia ocellata Cuvier, 1804
* Phyllidiopsis fissuratus Brunckhorst, 1993: synonym of Phyllidiopsis fissurata Brunckhorst, 1993 (incorrect gender agreement of specific epithet)
* Phyllidiopsis gynenopla Bouchet, 1977: synonym of Phyllidiopsis berghi Vayssière, 1902
* Phyllidiopsis molaensis Meyer, 1977 accepted as Phyllidiella molaensis (Meyer, 1977) (original combination)
* Phyllidiopsis papilligera Bergh, 1890: synonym of Ceratophyllidia papilligera (Bergh, 1890)
* Phyllidiopsis striata Bergh, 1888: synonym of Phyllidiella striata (Bergh, 1890)
A maximum-parsimony analysis of the nucleotide sequence of the 16S mtDNA gene, performed in 2003, has shown that the genus Phyllidiopsis is paraphyletic.
* Phyllidiopsis annae
* Phyllidiopsis cardinalis
* Phyllidiopsis fissuratus
* Phyllidiopsis gemmata
* Phyllidiopsis krempfi
* Phyllidiopsis loricata
* Phyllidiopsis phiphiensis
* Phyllidiopsis pipeki
* Phyllidiopsis shireenae
* Phyllidiopsis xishaensis
* Phyllidiopsis sp. 1
* Phyllidiopsis unknown species at Wakatobi National Park, 2016