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Phestilla
An orange individual of Phestilla melanobrachia, head end towards the left
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Nudibranchia
Suborder:	Cladobranchia
Superfamily:	Fionoidea
Family:	Trinchesiidae
Genus:	Phestilla Bergh, 1874

Phestilla is a genus of sea slugs, aeolid nudibranchs, marine gastropod molluscs in the family Trinchesiidae.

Its members are unusual in feeding on hard corals, unlike other members of the family Trinchesiidae which feed on hydroids. Adult Phestilla have no cnidosacs. This genus has been investigated using DNA phylogeny and undescribed species exist.

Species

Species within the genus Phestilla include:

• Phestilla chaetopterana (Ekimova, Deart & Schepetov, 2017)
• Phestilla fuscostriata Hu, Zhang, Xie & Qiu, 2020
• Phestilla goniophaga Hu, Zhang, Yiu, Xie & Qui, 2020
• Phestilla lugubris (Bergh, 1870)
• Phestilla melanobrachia Bergh, 1874
• Phestilla minor Rudman, 1981
• Phestilla panamica Rudman, 1982
• Phestilla poritophages (Rudman, 1979)
• Phestilla sibogae Bergh, 1905
• Phestilla subodiosa A. Wang, Conti-Jerpe, J. L. Richards & D. M. Baker, 2020
• Phestilla viei Mehrotra, Caballer & Chavanich in Mehrotra, Arnold, Wang, Chavanich, Hoeksema & Caballer, 2020

Species names currently considered to be synonyms:

• Phestilla hakunamatata Ortea, Caballer & Espinosa, 2003 synonym of Hermosita hakunamatata (Ortea, Caballer & Espinosa, 2003)
• Phestilla subodiosus A. Wang, Conti-Jerpe, J. L. Richards & D. M. Baker, 2020 : synonym of Phestilla subodiosa A. Wang, Conti-Jerpe, J. L. Richards & D. M. Baker, 2020 (incorrect gender agreement of specific epithet)

References

1. ^ Faucci, A., Robert J. Toonen, & Michael G. Hadfield, (2007). Host shift and speciation in a coralfeeding nudibranch. Proceedings of the Royal Society, B Biological Sciences 274(1606):111-119.
2. Korshunova, T.; Martynov, A.; Picton, B. (2017). Ontogeny as an important part of integrative taxonomy in tergipedid aeolidaceans (Gastropoda: Nudibranchia) with a description of a new genus and species from the Barents Sea. Zootaxa. 4324(1): 1.
3. Rudman, W.B., 2000 (January 29) Phestilla sp. 1. Sea Slug Forum. Australian Museum, Sydney.
4. Bouchet, P.; Bieler, R. (2016). Phestilla Bergh, 1874. In: MolluscaBase (2016). Accessed through: World Register of Marine Species on 2016-12-27.

External links

• Nudipixel page for the genus
• Bergh, L. S. R. (1874). Neue Nacktschnecken der Südsee, malacologische Untersuchungen II. Journal des Museum Godeffroy. 2(6): 91-116
• Bieler, R. & R. E. Petit, 2012. Molluscan taxa in the publications of the Museum Godeffroy of Hamburg, with a discussion of the Godeffroy Sales Catalogs (1864–1884), the Journal des Museum Godeffroy (1873–1910), and a history of the museum. Zootaxa, 3511: 1-80
• Cella, K; Carmona Barnosi, L.; Ekimova, I; Chichvarkhin, A; Schepetov, D; Gosliner, T. M. (2016). A radical solution: The phylogeny of the nudibranch family Fionidae. PLoS ONE. 11(12): e0167800
• Korshunova, T.; Martynov, A.; Picton, B. (2017). Ontogeny as an important part of integrative taxonomy in tergipedid aeolidaceans (Gastropoda: Nudibranchia) with a description of a new genus and species from the Barents Sea. Zootaxa. 4324(1): 1

• Trinchesiidae