Paraflabellina ischitana

Paraflabellina ischitana (Hirano & Thompson, 1990)

Paraflabellina ischitana by Enric Madrenas

Taxonomy
 

Superdomain

Biota  

 

Kingdom

Animalia  

 

Phylum

Mollusca  

 

Class

Gastropoda  

 

Subclass

Heterobranchia  

 

Infraclass

Euthyneura  

 

Subterclass

Ringipleura  

 

Superorder

Nudipleura  

 

Order

Nudibranchia  

 

Suborder

Cladobranchia  

 

Superfamily

Aeolidioidea  

 

Family

Flabellinidae  

 

Genus

Paraflabellina  

 

Species

Paraflabellina ischitana  (Hirano & T. E. Thompson, 1990)

 
 Classification according to Bouchet et al. (2017)
Taxonomic source: World Register of Marine Species (AphiaID: 1048137).

Taxonomic note: The classification of the Flabellinidae had remained fairly stable until in 2017 a series of works appeared (Furfaro et al., 2017; Korshunova et al., 2017) that intended to clarify the status of the Flabellinidae family. The main objective of the paper by Furfaro et al. was to molecularly characterize the Mediterranean species while the paper by Korshunova et al. wanted to delve into the phylogenetic relationships between various members of the Flabellinidae family and the other families of aeolidaceans.
Both works were based on the combination of molecular and morphological techniques and, in fact, do not offer very different results, but differ on the size and origin of the studied samples and, mainly, on the interpretation of the results. After the appearance of the paper by Furfaro et al., many Mediterranean species of the genera Calmella, Flabellina and Piseinotecus were grouped under the common genusFlabellina, but had certain problems with some species that did not fit well with the proposed classification (e.g,Flabellina babai) , discovered that the Mediterranean and Atlantic populations ofFlabellina ischitana correspond to two different cryptic species, and noted the problems of the cryptic group formed by Calmella cavolini / Flabellina confusa / Piseinotecus gaditanus, indicating the need for further studies to clarify their status.
Curiously, these studies were being carried out practically in parallel by the group of Korshunova et al. but on a much wider sample of species that included specimens from the Arctic, North Atlantic, Pacific and Indian Oceans. This second paper confirms the polyphily of the family Flabellinidae, but the interpretation of these results becomes a real revolution for the taxonomy of the aeolidaceans, especially for the family Flabellinidae.
Both papers show that there are two well differentiated clades (groups) in the Flabellinidae: species like Coryphella pedata and similars, with cerata that come directly from the back, and species like Flabellina affinis and similars, with cerata of each group coming from a stalk or pod. Although Furfaro et al. consider the species of both clades belonging to the genusFlabellina within the family Flabellinidae, Korshunova et al. distinguishes two families: Coryphellidae and Flabellinidae sensu stricto, also creating many different genera in these families to include the species they study. Its taxonomic proposal, curiously, solves the problems found by Furfaro et al.
In a way, both papers complement to each other, although in the paper by Korshunova et al. it is evident the lack of studies on tropical flabellinid species and those from southern America and Africa, so the subject has not been settled. The proposal to create new genera to collect small groups of species, instead of multispecific genera, seems to be the trend in some of the phylogenetic works of recent years. A detailed discussion of this exciting controversy can be found at (https://opistobranquis.info/en/flabellinidae/).

Synonyms

  • Flabellina ischitana  Hirano & Thompson, 1990

Description
This species of aeolidacean can reach a size of up to 25 mm long. The body color is homogeneous pink or purple-violet except on the tips of rhinophores and oral tentacles, which are white, and the cerata, semitransparent and inside which it can be seen the red, orange or brown digestive gland, depending on the specimens. The rhinophores have from 12 to 19 thin circular lamellae. In larger specimens there can be up to 9 groups cerata on each side of the back, generally well separated from each other. The cerata of each group come from a common stalk of the same color of the body, which can be further divided in 2 to 3 secondary stalks in the groups cerata located to the front of the animal. The cerata are thin and have a whitish sharp tip, where  the cnidosac can be seen. The genital and anal orifices are located on the right side of the body, the genital pore located slightly before the first ceratal stalk and the anal pore somewhat ahead of the second group of cerata. The foot is narrow, of the same color of the body and, with two small triangular propodials tentacles in the front side. The tail is short and narrow.

Biology
This is an active aeolidacean often found in shallow water, where its food, the athecate hydrozooan Eudendrium (E. racemosum, E. glomeratum) lives, but it has also been observed down to a depth of 35 m (Hirano & Thompson, 1990). It can share food and substrate with Flabellina affinis, a somewhat larger species with which it can easily be confused. Cervera et al. (1998) indicate the main differences between these two species. The spawn of P. ischitana is shaped like a thick cord arranged in irregular loops containing pink eggs about 70 microns in diameter.

Etymology

  • Paraflabellina, from Greek παρα (=contiguous) and Flabellina, in reference to its external similitude to the species of the genus Flabellina, despite molecular disparate results.
  • Flabellina. Diminutive of Latin “flabellum”, fan.
  • Ischitana. From the island of Ischia, in the Tirrenian Sea, in the gulf of Naples; where this nudibranch was first cited.

Distribution
P. ischitana is a southern European species living both in the Eastern and Western Mediterranean basins. In the Iberian Peninsula it has been found in Portugal, the Strait of Gibraltar and all along the Mediterranean coast. In Catalonia it is a relatively common species which is recorded in different localities of the Costa Brava such as Cadaques, Cala Aiguablava (Begur), L’Escala and Tossa de Mar.

Known georeferenced records of the species: Paraflabellina ischitana
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

Similar species
Flabellina affinis, very similar, with purple tipped cerata. Edmundsella pedata, with smooth rhinophores and cerata growing directly on the body, not from dorsal peduncles or stalks.

Abundance

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

This chart displays the monthly observation probability for Paraflabellina ischitana based on our own records.

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Bibliography

    Ballesteros M. 2007. Lista actualizada de los opistobranquios (Mollusca: Gastropoda: Opisthobranchia) de las costas catalanas. Spira. 2(3):163–188.
    Ballesteros M, Pontes M, Madrenas E. 2015. Opisthobranch from Medes Islands (Marine Protected Area, Costa Brava, Catalonia, NE Spain): 40 years of study. Available from https://www.facebook.com/people/5th-International-Workshop-on-Opisthobranchs/100072425991990/.
    Ballesteros M, Madrenas E, Pontes M. 2016. Actualización del catálogo de los moluscos opistobranquios (Gastropoda: Heterobranchia) de las costas catalanas. Spira. 6:1–28.
    Ballesteros M, Madrenas E, Pontes M. 2023. OPK - Opistobranquis. Available from https://opistobranquis.info/.
    Ballesteros M, Pontes M, Madrenas E. 2019. Els nudibranquis del mar català. Figueres: Brau Edicions. 192 p.
    Bavestrello G, Cerrano C, Cattaneo-Vietti R, et al. 1996. Relations between Eudendrium glomeratum (Cnidaria, Hydromedusae) and its associated vagile fauna. Sci.-Mar.-Barc. 60(1):137-143.
    Bedulli D, Cattaneo-Vietti R, Chemello R, et al. 1995. Gastropoda Opisthobranchia, Divasibranchia, Gymnomorpha, Fascicolo 15, pp. 1-23.  In: A. Minelli, A. Ruffo, & S. La Posta (Eds.). Checklist delle specie fauna italiana. Bologna: Calderini (Checklist delle specie della Fauna Italiana).
    Betti F, Bavestrello G, Cattaneo-Vietti R. 2021. Preliminary evidence of fluorescence in Mediterranean heterobranchs. Journal of Molluscan Studies. 87:eyaa040. https://doi.org/10.1093/mollus/eyaa040.
    Bielecki S, Cavignaux G, Crouzet JM, et al. 2011. Des limaces de rêve.
    Calado G, Urgorri V, Gaspar R, et al. 1999. Catálogo de los moluscos opistobranquios bentónicos de las costas de Setúbal-Espichel (Portugal). Nova Acta Científica Compostelana (Bioloxía) 9: 285-294.
    Calado G, Malaquias M, Gavaia C, et al. 2003. New data on opisthobranchs (Mollusca: Gastropoda) from the southwestern coast of Portugal. Boletín Instituto Español de Oceanografía 19 (1-4): 199-204.
    Carmona L, Pola M, Gosliner TM, et al. 2015. Protaeolidiella atra Baba, 1955 versus Pleurolidia juliae Burn, 1966: One or two species? Helgol Mar Res 69:137-145.
    Carmona L, Pola M, Gosliner TM, et al. 2013. A tale that morphology fails to tell: A molecular phylogeny of Aeolidiidae (Aeolidida, Nudibranchia, Gastropoda). PLoS ONE 8(5): e63000. doi:10.1371/journal.pone.0063000.
    Cattaneo-Vietti R, Thompson TE. 1989. Mediterranean opisthobranch molluscs: a zoogeographic approach. Bollettino Malacologico (Pubblicazione Mensile Edita dalla Societa Italiana di Malacologia) 25(5-8):183-204.
    Cattaneo-Vietti R, Chemello R, Giannuzzi-Savelli R. 1990. Atlas of Mediterranean Nudibranchs. Rome, Italy: La Conchiglia. 264 p.
    Cervera JL, López González PJ, García JC. 1994. Flabellina ischitana Hirano y Thompson, 1990: una nueva especie de nudibranquio (Gastropoda: Opisthobranchia) para la fauna Iberica. X Congreso Nacional de Malacologia, Barcelona 13 al 16 de Septiembre de 1994, Libro de Resumenes; pp.123-124.
    Cervera JL, López-González PJ, García-Gómez JC. 1998. Redescription of the aeolid nudibranch Flabellina ischitana Hirano and Thompson, 1990 (Gastropoda: Opisthobranmchia). Veliger. 41(3):289–293.
    Cervera JL, Calado G, Gavaia C, et al. 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.
    Dacosta JM, Pontes M, Ollé i Callau A, et al. 2009. Seguiment de mol·luscs opistobranquis a la platja des Caials (Cadaqués, Alt Empordà). Contribució al catàleg del Parc Natural de Cap de Creus. Annals de l’Institut d’Estudis Empordanesos. 40:107–130. https://doi.org/10.2436/20.8010.01.8.
    Debelius H, Kuiter RH. 2007. Nudibranchs of the world. Frankfurt: IKAN- Unterwasserarchiv. 360 pp. p.
    Doneddu M, Manunza B, Trainito E. 1995. Opistobranchi del Nord Sardegna: censimento ed annotazioni. Biologia Marina Mediterranea II (2): 369-370.
    Furfaro G, Mariottini P. 2016. Check-list of the Nudibranchs (Mollusca Gastropoda) from the biodiversity hot spot " Scoglio del Corallo " (Argentario promontory, Tuscany). Biodiversity Journal. 7(1):67–78.
    Furfaro G, Salvi D, Mancini E, et al. 2018. A multilocus view on Mediterranean aeolid nudibranchs (Mollusca): Systematics and cryptic diversity of Flabellinidae and Piseinotecidae. Molecular Phylogenetics and Evolution. 118:13–22. https://doi.org/10.1016/j.ympev.2017.09.001.
    Furfaro G, Vitale F, Licchelli C, et al. 2020. Two Seas for One Great Diversity: Checklist of the Marine Heterobranchia (Mollusca; Gastropoda) from the Salento Peninsula (South-East Italy). Diversity. 12(12):171.
    Garcia FJ, Bertsch H. 2009. Diversity and distribution of the Gastropoda Opisthobranchia from the Atlantic Ocean: A global biogeographic approach. Scientia Marina. 73(1):153–160. https://doi.org/10.3989/scimar.2009.73n1153.
    García-Gómez JC. 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.
    Hirano YJ, Thompson TE. 1990. Flabellinid nudibranchs from the Bay of Naples, with a description of a new species, Flabellina ischitana. J. Molluscan Stud. 56(3):345-354.
    Korshunova TA, Martynov AV, Bakken T, et al. 2017. Polyphyly of the traditional family Flabellinidae affects a major group of Nudibranchia: aeolidacean taxonomic reassessment with descriptions of several new families, genera, and species (Mollusca, Gastropoda). ZooKeys 717: 1-139. https://doi.org/https://doi.org/10.3897/zookeys.717.21885.
    Korshunova TA, Martynov AV, Bakken T, et al. 2017. Corrigenda: Polyphyly of the traditional family Flabellinidae affects a major group of Nudibranchia: aeolidacean taxonomic reassessment with descriptions of several new families, genera, and species (Mollusca, Gastropoda). https://doi.org/10.3897/zookeys.717.21885. ZooKeys 725: 139–141. https://doi.org/https://doi. org/10.3897/zookeys.725.23022.
    Long SJ. 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. Available from http://www.juntadeandalucia.es/medioambiente/portal_web/servicios_generales/doc_tecnicos/2018/nudibranquios_tarifa/nudibranquios_tarifa_web.pdf.
    McDonald G. 2009. Bibliographia Nudibranchia. 2nd Online Edition, Annotated. 1072 pp  Institute of Marine Sciences, University of California, Santa Cruz. Available from http://escholarship.org/uc/item/8115h0wz.
    Ocaña Martín A, Sánchez Tocino L, López González S, et al. 2000. Guía submarina de invertebrados no artrópodos. Granada: Comares.
    Ortea J, Espinosa J. 1998. Estudio de nueve especies del género Flabellina Voight, 1834 (Mollusca: Nudibranchia) colectadas en Angola, Cabo Verde, Costa Rica, Cuba y Portugal, con la descripción de tres especies nuevas. Avicennia 8-9: 135-148.
    Ortea J, Moro L, Bacallado JJ, et al. 2009. Nuevas aportaciones al inventario de las babosas marinas del archipiélago canario (Mollusca: Opisthobranchia y Sacoglossa). Vieraea 37: 105-117.
    Ozturk B, Dogan A, Bitlis-Bakir B, et al. 2014. Marine Molluscs of the Turkish Coasts: An Updated Checklist. Tübitak, Turkish Journal of Zoology 38. https://doi.org/10.3906/zoo-1405-78.
    Parent G. 1994. Redescription de Flabellina ischitana (Gastropoda, Nudibranchia) observe en mer Banyuls: une nouvelle localite. Vie et Milieu 44(3-4):211-214.
    Pontes M, Dacosta JM, Ollé i Callau A, et al. 2023. M@re Nostrum. Available from http://marenostrum.org/.
    Prkić J, Petani A, Iglić Ð, et al. 2018. Stražnjoškržnjaci Jadranskoga Mora: Slikovni Atlas i Popis Hrvatskih Vrsta / Opisthobranchs of the Adriatic Sea: Photographic Atlas and List of Croatian Species. Bibinje: Ronilaćki Klub Sveti Roko. 464 p. Available from https://opistobranquis.info/en/recursos/llibres-recomanats/opisthobranchs-of-the-adriatic-sea/.
    Rudman W.B. et al. 1998 2010. Flabellina ischitana accessed through: Sea Slug Forum on 2014-12-14. Available from http://seaslugforum.net/showall/flabisch.
    Rufray X, Girard P, Le Bris S, et al. 2021. Liste commentée des limaces de mer de la lagune de Thau, Hérault. Les cahiers de la fondation Biotope. 36:1–189. Available from https://www.biotope.fr/download/230907/.
    Sánchez Tocino L. 2001. Flabellina ischitana accessed through: Opistobranquios de la Costa de Granada on 2014-12-14. Available from http://www.ugr.es/~lstocino/f_ischitana.htm.
    Sánchez Tocino L, Ocaña A, García FJ. 2000. Contribución al conocimiento de los moluscos opistobranquios de la costa de Granada (sureste de la Península Ibérica). Iberus 18(1):1-14.
    Sánchez-Tocino L. 2018. El Litoral de Granada - Opistobranquios. El Litoral de Granada. Available from https://litoraldegranada.ugr.es/el-litoral/el-litoral-sumergido/fauna/moluscos/gasteropodos/opistobranquios/.
    Santini F, Winterbottom R. 2002. Historical biogeography of Indo-western Pacific  coral reef biota: is the Indonesian region a centre of origin? Journal of Biogeography 29(2):189-205.
    Schulze A, Wägele H. 1998. Morphology, anatomy and histology of Flabellina affinis (Gmelin, 1791) (Nudibranchia, Aeolidoidea, Flabellinidae) and its relation to other Mediterranean Flabellina species. Journal of Molluscan Studies 64(2):195-214.
    Silva JP. 2008 2014. Flabellina ischitana accessed through: Hypselodoris, Lesmas do Mar on 2014-12-21. Available from http://hypselodoris.blogspot.pt/2011/04/flabellina-ischitana-hirano-thompson.html.
    Templado J, Villanueva R. 2010. Checklist of Phylum Mollusca. pp. 148-198 In Coll, M., et al., 2010. The biodiversity of the Mediterranean Sea: estimates, patterns, and threats. PLoS ONE 5(8):36pp.
    Trainito E. 2005. Nudibranchi del Mediterraneo : guida al riconoscimento dei molluschi opistobranchi. Trezzano sul Naviglio (Milano): Il Castello.
    Trainito E, Doneddu M. 2014. Nudibranchi del Mediterraneo. 2nd. Il Castello. 192 p.

    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) "Paraflabellina ischitana" in OPK-Opistobranquis. Published: 17/05/2012. Accessed: 19/03/2024. Available at (https://opistobranquis.info/en/?p=601)

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