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 on 2016-02-28
↑ Rudman, W.B., 2000 (September 17). Cuthona gymnota (Couthouy, 1838). [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 on 2016-02-28

[3] Rudman, W.B., 2000 (September 17). Cuthona gymnota (Couthouy, 1838). [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.