Roboastra tentaculata
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Nudibranchia
Suborder: Doridina
Superfamily: Polyceroidea
Family: Polyceridae
Genus: Roboastra
Species:
R. tentaculata
Binomial name
Roboastra tentaculata
(Pola, Cervera & Gosliner, 2005)[1]
Synonyms
  • Tambja tentaculata Pola, Cervera & Gosliner, 2005

Roboastra tentaculata is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusc in the family Polyceridae.[2]

Distribution

This species was described from Guam.[1]

Etymology

Tentaculata is used to describe Roboastra tentaculata due to the presence of oral tentacles.[3] Oral tentacles allow sea slugs to move and obtain information from the environment.[4]

Phylogeny

In order for phylogenetic integrity, Roboastra tentaculata was moved into Roboastra from the genus Tambja.[5][6]

Morphology

The bulk of the sea slug body is green, along with bright yellow or orange stripes outlined with brown.[3][7] Two green rhinophores with lamellae and rhinophoral cases are noticeable.[3] This sea slug has green gills of two different sizes.[3] Bright green oral tentacles are also found on the back of the organism, opposite of a straight green foot located on the bottom.[3] Also present is a radula with smooth and large teeth.[3] The digestive system is composed of salivary glands, an esophagus and an oral tube.[3] R. tentaculata also have three reproductive duct structures; a hermaphroditic, vaginal and uterine duct.[3] The first duct is hermaphroditic with an ampulla, vas deferens and a spiked penis.[3] The second tract is composed of a small vaginal tube and a bursa copulatrix.[3] The third duct contains a uterine tube and one oviduct.[3]

References

  1. 1 2 Pola M., Cervera J.L. & Gosliner T.M., 2005. Four new species of Tambja Burn, 1962 (Nudibranchia: Polyceridae) from the Indo-Pacific. Journal of Molluscan Studies, 71(3): 257-267 .
  2. ↑ MolluscaBase eds. (2021). MolluscaBase. Roboastra tentaculata (Pola, Cervera & Gosliner, 2005). Accessed on 2021-01-25.
  3. 1 2 3 4 5 6 7 8 9 10 11 Pola, Marta; Cervera, J. Lucas; Gosliner, Terrence M. (2005-08-01). "Four New Species of Tambja Burn, 1962 (Nudibranchia: Polyceridae) from the Indo-Pacific". Journal of Molluscan Studies. 71 (3): 257–267. doi:10.1093/mollus/eyi034. ISSN 1464-3766.
  4. ↑ Rudman, W.B. (March 26, 1999). "The Nudibranch Head". Sea Slug Forum. Retrieved May 3, 2021.
  5. ↑ Pola, Marta; Cervera, J; Gosliner, Terrence (2008). "Description of the First Roboastra Species (Nudibranchia, Polyceridae, Nembrothinae) From The Western Atlantic". Bulletin of Marine Science. 83: 391–399 – via ResearchGate.
  6. ↑ Pola, Marta; Padula, Vinicius; Gosliner, Terrence M.; Cervera, Juan Lucas (December 2014). "Going further on an intricate and challenging group of nudibranchs: description of five novel species and a more complete molecular phylogeny of the subfamily Nembrothinae (Polyceridae)". Cladistics. 30 (6): 607–634. doi:10.1111/cla.12097. PMID 34781594. S2CID 85156960.
  7. ↑ "Selection: Roboastra tentaculata". www.philippine-sea-slugs.com. Retrieved 2021-04-09.
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