Catriona gymnota

Catriona gymnota
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia; clade Euthyneura; clade Nudipleura; clade Nudibranchia; clade Dexiarchia ; clade Cladobranchia; clade Aeolidida
Superfamily:	Fionoidea
Family:	Trinchesiidae
Genus:	Catriona
Species:	C. gymnota
Binomial name
	Catriona gymnota; (Couthouy, 1838)[1]
Synonyms
	Eolis gymnota Couthouy, 1838 ; Eolis sanguifera Dalyell, 1853 ; Montagua gouldi Verrill, 1874 ;

Catriona gymnota is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusk in the family Trinchesiidae.[2]

Distribution

This species was described from Massachusetts Bay, on the Atlantic Ocean coast of the USA. It is reported from the NW Atlantic from Canada to New Jersey.[3] DNA evidence suggests that the NE Atlantic specimens previously thought to be this species actually belong to a separate species and should therefore be called Catriona aurantia.[4][5]

Description

This species has a translucent white body and slightly swollen cerata. The digestive gland is orange pink in colour and the tips of the cerata have a broad white band of tiny epidermal glands. In larger specimens the rhinophores develop a pale orange suffusion. The foot is broad and rounded anteriorly. Large individuals may exceed 20 mm in length.

References

Couthouy J. P. (1838). Descriptions of new species of Mollusca and shells, and remarks on several Polypii, found in Massachusetts Bay. Boston Journal of Natural History 2 (1): 53-111, pl. 1-3
Gofas, S. (2015). Cuthona gymnota (Couthouy, 1838). In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=153380 Archived 2017-11-07 at the Wayback Machine on 2016-02-28
Rudman, W.B., 2000 (September 17). Cuthona gymnota (Couthouy, 1838). Archived 2016-03-04 at the Wayback Machine [In] Sea Slug Forum. Australian Museum, Sydney.
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.

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[1] Couthouy J. P. (1838). Descriptions of new species of Mollusca and shells, and remarks on several Polypii, found in Massachusetts Bay. Boston Journal of Natural History 2 (1): 53-111, pl. 1-3

[2] Gofas, S. (2015). Cuthona gymnota (Couthouy, 1838). In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=153380 Archived 2017-11-07 at the Wayback Machine on 2016-02-28

[3] Rudman, W.B., 2000 (September 17). Cuthona gymnota (Couthouy, 1838). Archived 2016-03-04 at the Wayback Machine [In] Sea Slug Forum. Australian Museum, Sydney.

[4] 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.

[5] 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.