Tyrannodoris tigris

Tyrannodoris tigris
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia; clade Euthyneura; clade Nudipleura; clade Nudibranchia; clade Euctenidiacea; clade Doridacea
Superfamily:	Polyceroidea
Family:	Polyceridae
Subfamily:	Nembrothinae
Genus:	Tyrannodoris
Species:	T. tigris
Binomial name
	Tyrannodoris tigris; (Farmer, 1978)
Synonyms
	Roboastra tigris Farmer, 1978[1];

Tyrannodoris tigris is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusk in the family Polyceridae.[2] It is a known predator of Tambje eliora and Tambje abdere, two species of smaller nudibranchs. The chemical extracts of all three species contain tambjamines, which were traced to Sessibugula translucens, a food source of these species. It is hypothesized that tambjamines are a chemical defence mechanism against feeding by the spotted kelpfish Gibbonsia elegans.[3][4]

Distribution

This species is found in the Gulf of California to Bahia de Banderas.[5]

Description

Tyrannodoris tigris can grow as large as 30 cm in length. Like other nudibranchs in the genus Tyrannodoris, it is carnivorous and predatory, feeding on other sea slugs.[6]

References

Farmer, W.M. (1978). "Tambja and Roboastra (Mollusca, Opisthobranchia) from the Gulf of California and the Galapagos Islands." The Veliger 20: 375-385.
MolluscaBase (2018). Tyrannodoris tigris (Farmer, 1978). Accessed through: World Register of Marine Species on 2018-08-20.
Carté, B.; Faulkner, D. J. (1983). "Defensive metabolites from three nembrothid nudibranchs". The Journal of Organic Chemistry. 48 (14): 2314. doi:10.1021/jo00162a003.
Carté, Brad; Faulkner, D. John (1986). "Role of secondary metabolites in feeding associations between a predatory nudibranch, two grazing nudibranchs, and a bryozoan". Journal of Chemical Ecology. 12 (3): 795–804. doi:10.1007/BF01012111. PMID 24306917. S2CID 20245013.
Hermosillo, A., 2007 (Jul 26) Roboastra leonis - Feeding behaviour. [Message in] Sea Slug Forum. Australian Museum, Sydney.
Rudman, W.B., 2000 (December 28) Roboastra tigris Farmer, 1978. [In] Sea Slug Forum. Australian Museum, Sydney.

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[1] Farmer, W.M. (1978). "Tambja and Roboastra (Mollusca, Opisthobranchia) from the Gulf of California and the Galapagos Islands." The Veliger 20: 375-385.

[2] MolluscaBase (2018). Tyrannodoris tigris (Farmer, 1978). Accessed through: World Register of Marine Species on 2018-08-20.

[3] Carté, B.; Faulkner, D. J. (1983). "Defensive metabolites from three nembrothid nudibranchs". The Journal of Organic Chemistry. 48 (14): 2314. doi:10.1021/jo00162a003.

[4] Carté, Brad; Faulkner, D. John (1986). "Role of secondary metabolites in feeding associations between a predatory nudibranch, two grazing nudibranchs, and a bryozoan". Journal of Chemical Ecology. 12 (3): 795–804. doi:10.1007/BF01012111. PMID 24306917. S2CID 20245013.

[5] Hermosillo, A., 2007 (Jul 26) Roboastra leonis - Feeding behaviour. [Message in] Sea Slug Forum. Australian Museum, Sydney.

[6] Rudman, W.B., 2000 (December 28) Roboastra tigris Farmer, 1978. [In] Sea Slug Forum. Australian Museum, Sydney.