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Amphorina linensis

Amphorina linensis (García-Gómez, Cervera & García, 1990)

Amphorina linensis by Carlos Fernández-Cid

Synonyms

  • Eubranchus linensis Garcia-Gomez, Cervera & Garcia, 1990: 585–593.
  • Amphorina linensis (Garcia-Gomez, Cervera & Garcia, 1990): Martynov 1998: 775.
  • Eubranchus tricolor: sensu Trainito & Doneddu, 2014: 118, non Forbes, 1838.
  • Eubranchus sp. 1: Prkić et al., 2018: 353–357.

Description
Adult specimens can reach 30mm in length. Body narrow, translucent whitish or yellowish, but never with blackish non transparent pigmentation nor with homogeneous orange coloration. Sometimes with small white scores all over the body, foot and cerata. Some specimens have very distinctive reddish orange dorsal spots that never cover the tail. Adriatic specimens are often smaller and show a light blue hue covering cerata, rhinophores and oral tentacles giving the animal a bluish appearance; so far no specimens with red dorsal spots have been found in the Adriatic. Cerata of the color of the body, with the progressively whitish ends, never with a subapical pink ring. Cerata are tappered and quite inflated near the base, the largest in central position and arranged in groups. Inner digestive gland coloured gray or brown, visible by transparency. Smooth, relatively long rhinophores of the body color, commonly covered with relatively dense white dots with small insertions of yellowish brown pigment in some specimens, but without the formation of actual rings. Smooth oral tentacles, much shorter than the rhinophores, but similarly coloured. Slightly visible eyes at the base of the rhinophores. White translucent foot, quite wide, often with a distinct, sometimes dotted white line along the foot edge, without propodial palps, finished in a tappered tail.

Biology
It feeds on hydrarians of the Nemertesia, Obelia and Tubularia genera. Sweden specimens have always been found living below the halocline. Mediterranean specimens have been traditionally confused with the Atlantic species Eubranchus tricolor but they have obvious morphological differences. Recent work by Korshunova et al (2020) has allowed to clarify this situation.

Etymology

  • Linensis. From “linense”, Spanish denomination to the inhabitants of the village of La Línea de La Concepción, Cádiz, Spain, near the Spanish border with Gibraltar.

Distribution
Basically present in the Eastern Atlantic, from Gibraltar to Sweden and Southwest Norway, and in the Mediterranean, where it is reported from Spain, France and Italy, also from the Adriatic. In the Iberian Peninsula it has only been reported in Catalonia, in the rocky bars off Mataró (Barcelona).

Known georeferenced records of the species: Amphorina linensis
Sources:
: OBIS
: GROC 2010-2011
: Enric Madrenas
: João Pedro Silva
: Bernard Picton
: GBIF.ORG		 : OPK
: VIMAR
: Manuel Ballesteros.
: M@re Nostrum
: Altres fonts
: Marine Regions

Abundance

    Western Mediterranean: ★☆☆☆☆
    Eastern Mediterranean: ★☆☆☆☆
    Atlantic Ocean: ★☆☆☆☆
Month

This chart displays the monthly observation probability for Amphorina linensis based on our own records.

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Bibliography

    Ballesteros, M., E. Madrenas, and M. Pontes. 2023. OPK - Opistobranquis. (https://opistobranquis.info/).
    Calado, G., and V. Urgorri. 1998. Additions and new data on Portuguese Opisthobranchs. Bollettino Malacologico 35 (5- 8): 97-102.
    Calado, G., V. Urgorri, R. Gaspar, and F. J. Cristobo. 1999. Catálogo de los moluscos opistobranquios bentónicos de las costas de Setúbal-Espichel (Portugal). Nova Acta Científica Compostelana (Bioloxía) 9: 285-294.
    Cella, K., L. Carmona, I. Ekimova, A. Chichvarkhin, D. Schepetov, and T. M. Gosliner. 2016. A Radical Solution: The Phylogeny of the Nudibranch Family Fionidae. PLoS ONE 12/2016; 11(12):e0167800.
    Cervera, J. L., G. Calado, C. Gavaia, M. A. E. Malaquías, J. Templado, M. Ballesteros, J. C. García-Gómez, and C. Megina. 2004. An annotated and updated checklist of the opisthobranchs (Mollusca: Gastropoda) from Spain and Portugal (including islands and archipelagos). Boletín Instituto Español de Oceanografía, 20 (1-4): 1-111. L.
    Ekimova, I., A. L. Mikhlina, O. A. Vorobyeva, T. I. Antokhina, V. G. Tambovtseva, and D. M. Schepetov. 2021. Young but distinct: description of Eubranchus malakhovi sp.n. a new, recently diverged nudibranch species (Gastropoda: Heterobranchia) from the Sea of Japan. Invertebrate Zoology. 18: 197–222.
    Furfaro, G., F. Vitale, C. Licchelli, and P. Mariottini. 2020. Two Seas for One Great Diversity: Checklist of the Marine Heterobranchia (Mollusca; Gastropoda) from the Salento Peninsula (South-East Italy). Diversity. 12: 171.
    Garcia, F. J., and H. Bertsch. 2009. Diversity and distribution of the Gastropoda Opisthobranchia from the Atlantic Ocean: A global biogeographic approach. Scientia Marina. 73: 153–160.
    García-Gómez, J. C. 2002. Paradigmas de una fauna insólita; Los moluscos opistobranquios del estrecho de Gibraltar (Serie Ciencias) 20: 397 pp. Instituto de Estudios Gibraltareños. Algeciras, Cádiz, Spain.
    García-Gómez, J. C., J. L. Cervera, and F. J. García. 1990. Description of Eubranchus linensis new species (Nudibranchia), with remarks on diauly in nudibranchs. Journal of Molluscan Studies 56: 585-593.
    García-Gómez, J. C., J. L. Cervera, F. J. García, J. A. Ortea, S. F. García-Martin, A. Medina, and L. P. Burnay. 1991. Resultados de la campaña internacional de biología marina “Algarve 88”: moluscos opistobranquios. Bollettino Malacologico 27 (5-9): 125-138.
    Korshunova, T., K. Malmberg, J. Prkić, A. Petani, K. Fletcher, K. Lundin, and A. V. Martynov. 2020. Fine-scale species delimitation: speciation in process and periodic patterns in nudibranch diversity. ZooKeys. 917: 15-50.
    Long, S. J. 2006. Bibliography of Opisthobranchia 1554-2000. Bayside Books & Press, Tustin, CA, U.S.A. 672p.
    Martínez-Chacón, M. 2018. Nudibranquios de la isla de Tarifa, pequeñas joyas del estrecho de Gibraltar. Junta de Andalucía. Consejería de Medio Ambiente y Ordenación del Territorio.
    McDonald, G. 2009. Bibliographia Nudibranchia. 2nd Online Edition, Annotated. 1072 pp  Institute of Marine Sciences, University of California, Santa Cruz. (http://escholarship.org/uc/item/8115h0wz).
    Menéndez, J. L., and J. Oliveros. 2004. Eubranchus linensis accessed through: AsturNatura on 2015-02-05. (http://www.asturnatura.com/especie/eubranchus-linensis.html).
    Naya Garmendia, L. M. 2016. Nudibranquios de la Costa Vasca: el pequeño Cantábrico multicolor. Aquarium de Donostia-San Sebastián.
    Ortea, J., L. Moro, and J. Espinosa. 1999. Dos moluscos opistobranquios nuevos de las Islas Canarias. Avicennia (10-11): 151-156.
    Rudman W.B. et al. 1998. Eubranchus linensis accessed through: Sea Slug Forum on 2014-12-14. (http://seaslugforum.net/showall/eubrline).
    Silva, J. P. 2008. Eubranchus linensis accessed through: Hypselodoris, Lesmas do Mar on 2014-12-21. (http://hypselodoris.blogspot.pt/2008/07/eubranchus-linensis-garcia-gomez.html).
    Tamsouri, N., L. Carmona, A. Moukrim, and J. L. Cervera. 2015. Description of Eubranchus amazighi sp. nov. (Gastropoda, Heterobranchia) from the Atlantic Coast of Morocco. American Malacological Bulletin, 33(1):110-113.
    Urgorri, V., G. Diaz-Agras, C. Besteiro, and G. Montoto. 2011. Additions to the inventory of Mollusca Opisthobranchia of Galicia (NW Iberian Peninsula). Thalassas. 27: 77–100.
    Valdés, A., and V. Heros. 1998. The types of Recent and certain fossil opisthobranch molluscs in the Museum national d’Histoire naturelle, Paris. Zoosystema 20(4):695-742.
    WoRMS Editorial Board. 2023. World Register of Marine Species. WoRMS. (http://www.marinespecies.org).

    Bibliography based on the works by Steve Long, 2006. Bibliography of Opisthobranchia 1554-2000 and Gary McDonald, 2009. Bibliographia Nudibranchia, with later updates from other resources.

Further reading

Cite this article as:

Ballesteros, M., Madrenas, E. & Pontes, M. (2023) "Amphorina linensis" in OPK-Opistobranquis. Published: 05/10/2013. Accessed: 01/06/2023. Available at (https://opistobranquis.info/en/YgJCn)

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