Favorinus tsuruganus

Favorinus tsuruganus is a species of aeolid nudibranch, a sea slug. It is a marine gastropod mollusk in the family Facelinidae.[2]

Favorinus tsuruganus
The nudibranch Favorinus tsuruganus, Rinca, Indonesia.
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda clade Heterobranchia
clade Euthyneura
clade Nudipleura
clade Nudibranchia
clade Dexiarchia
clade Cladobranchia
Superfamily:
Aeolidioidea
Family:
Facelinidae
Genus:
Favorinus
Species:
F. tsuruganus
Binomial name
Favorinus tsuruganus
Baba & Abe, 1964 [1]

Description

Favorinus tsuruganus grows to a maximum length of 25 mm.[3] The back and oral tentacles are opaque white and there is a yellow patch on the front of the head. The rhinophores are black, and swell in a collar-like shape in three places. The cerata have black tips with the digestive gland duct being orange, a distinguishing feature of this species.[4]

Distribution

This species occurs in Japan, more rarely in eastern Australia down to around Sydney, and has a wide western Pacific distribution.[3][5]

Diet and behaviour

Favorinus tsuruganus feeds on the eggs of a wide range of other opisthobranchs, in particular, Hexabranchus.[3][4]

gollark: Historically, basically all technologies have gotten increasingly cheap and widespread over time.
gollark: Probably the fancier new tools are counterbalanced by low-hanging fruit being gone.
gollark: If people want it enough (which is not guaranteed, since people can do *ridiculous* moralizing about death), and technology keeps progressing, it will happen.
gollark: But the existence of very long-lived animals does show that it is in principle possible.
gollark: Yet.

References
  1. Baba, K., & Takeo ABE. 1964. Record of Favorinus tsuruganus n. sp., from Tsuruga Bay, Japan (Nudibranchia - Eolidoidea). Publications of the Seto Marine Biological Laboratory 12(2):163-164.
  2. "WoRMS - World Register of Marine Species - Favorinus tsuruganus Baba & Abe, 1964". Marinespecies.org. Retrieved 2012-06-03.
  3. "sea slug Favorinus tsuruganus : Reunion island (Indian Ocean)". Seaslugs.free.fr. Retrieved 2012-06-05.
  4. Erwin Koehler, Maya, Daanbantayan, Cebu Island, Philippines. "Selection: Favorinus tsuruganus". Philippine-sea-slugs.com. Retrieved 2012-06-05.CS1 maint: multiple names: authors list (link)
  5. Rudman, W.B. "Favorinus tsuruganus". The Sea Slug Forum. Retrieved 2012-06-05.
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