Flabellina affinis

Flabellina affinis (Gmelin, 1791)

Flabellina affinis 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

Fionoidea  

 

Family

Flabellinidae  

 

Genus

Flabellina  

 

Species

Flabellina affinis  (Gmelin, 1791)

 
 Classification according to Bouchet et al. (2017)
Taxonomic source: World Register of Marine Species (AphiaID: 139988).

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. We hope to see new papers expanding the knowledge on the aeolidaceans soon. A detailed discussion of this exciting controversy can be found at (https://opistobranquis.info/en/flabellinidae/).

Synonyms

  • Doris affinis Gmelin, 1791 (original)
  • Eolidia flabellina Vérany, 1846

Description
This is a species that can reach up to 50 mm in length. The body is translucent and the overall coloration is pink-purple, the foot of a slightly lighter shade. Oral and propodial palps are also coloured pink-purple. The rhinophores are thin, annulated and of the same color of the body. The apex of oral palps and rhinophores is usually whitish. The cerata are long, narrow and pointed, semitransparent, with a light violet color except the upper third, that is somewhat darker; usually with a whitish apex. Within each cerata there is a diverticula of the digestive gland seen as a thin reddish-brown cord. The cerata are gathered in 7-8 groups on both sides of the body; The cerata of each group grow up from some thick lateral appendages of the body (like pods) which in turn are subdivided into 2-3 smaller appendages, each of these having 3-4 cerata. These pods from where the cerata grow are coloured pink and in certain specimens there are little darker violet spots. The genital openings are located below the first group of cerata on the right side of the body. The foot is narrow and semitransparent.

Biology
This is one of the most colorful, abundant and easy to identify nudibranchs on European shores. As most aeolidacean nudibranchs, it feeds on hydroids, in this case of the athecate genus Eudendrium (E. ramosum, E.racemosum ), on whose arborescent colonies it is usually localized, often sharing food and substrate with another very frequent aeolidacean, Cratena peregrina. It is generally found between 5 and 20 m. deep. F. affinis usually spawns on the hydrarian forming an undulating pink cord laid somewhat wildly; the cord width is about 0.5 mm and the eggs 90 microns in diameter are placed tightly inside of it. It is not uncommon to find specimens with parasiting copepods, easy distinguishable on the animal’s dorsum, between the cerata, because of their egg sacks forming a very apparent white lace.

Etymology

  • Flabellina derived of Latin Flabellum, meaning “fan”.
  • Affinis, means “alike, resemblant, similar”.

Distribution
This is one of the most frequent and widely distributed opisthobranchs found in European waters. In the Iberian Peninsula it has been cited in all coasts but in the Cantabrian coast and Galicia. It has also been cited in the Balearic and Canary islands. In Catalonia it is present in all rocky shores, wherever its food grows.

Known georeferenced records of the species: Flabellina affinis
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

References for the species: Flabellina affinis

    Portugal: García-Gómez et al. (1991), Calado and Urgorri (1999), Calado et al. (1999). Andalucía (Atl.): García-Gómez (1984a), Cervera and García-Gómez (1986), Wirtz and Debelius (2003). Gibraltar: García-Gómez (1982, 1986a, 2002), Schulze and Wägele (1998), García-Gómez et al. (1989). Andalucía (Med.): Luque (1983, 1986), Ballesteros et al. (1986), Cervera, López-González and García-Gómez (1998), Schick (1998), Sánchez Tocino, Ocaña and García (2000a), Ocaña et al. (2000), Peñas et al. (in press). Levante: Fez (1974), Templado (1982b), Ballesteros (1983), Ballesteros et al. (1986), Marín and Ros (1987), Templado et al. (2002). Catalunya: Vicente (1964), Ros (1975, 1978b, 1985a,b), Ros & Altimira (1977), Ballesteros (1980, 1985), Pereira (1980, 1981), Altimira et al. (1981), Pereira & Ballesteros (1982), Huelin & Ros (1984), Domènech et al. (2002), M@re Nostrum [La Foradada (Portbou) 10/1999, Cap Ras (Llançà) 11/1998, Cap Gros (El Port de la Selva) 9/1999, Cap de Creus (Cadaqués) 8/2003, Illa Mateua (L'Escala) 5/1999, Cova del Tamariu (Roses) 10/1999, Punta del Bisbe (Roses) 10/1999, Illes Medes (L'Estartit) 6/1999, Cala Margarida (Palamós) 4/1998, Mar Menuda (Tossa de Mar) 10/1999]. Baleares: Ros (1975, 1978b, 1981), Ballesteros (1981b, 1985), Ballesteros, Llera and Ortea (1985). Canarias: Pérez Sánchez, Ortea and Bacallado (1990), Pérez Sánchez, Bacallado and Ortea (1991), Moro et al. (1995, 2003), Ortea and Espinosa (1998), Ortea et al. (2001), Wirtz and Debelius (2003).

    General: Barletta, 1981:101[P]; Bergh, 1875:649; 1885:49; Cattaneo-Vietti, Chemello, & Giannuzzi-Savelli, 1990:159[P]; Fez Sanchez, 1974:103; Hirano & Thompson, 1990:[P]; Luque, 1983:69; Mazzarelli, 1903:288; Mienis & Gat, 1981a:416; Nordsieck, 1972:73; O'Donoghue, 1929:749; Perrone, 1986a:31; Pruvot-Fol, 1954b:413; Riedl, 1970:431; 1983:326; Schmekel, 1970:138; 1973b:325; Schmekel & Portmann, 1982:189[P]; Trinchese, 1887:227; 1887a:88; Vayssiere, 1888d:80; 1913a:294; Vicente, 1963a:178; 1967:160; 1981:79; 1991:[P]; Wagele & Schminke, 1987:[P]

    Sources: Cervera et al., 2004, Ballesteros, 2007 & 2016, McDonald, 2006 and other sources.

Abundance

    Western Mediterranean:4 out of 5 stars
    Eastern Mediterranean:4 out of 5 stars
    Atlantic Ocean:2 out of 5 stars
Month

This chart displays the monthly observation probability for Flabellina affinis based on our own records.

Videos

 

More pictures

Bibliography

    Adams, A. A., and H. Adams. 1853. The genera of recent Mollusca, arranged according to their organization. London (van Voorst): pp.1-256, pls 1-32, 1853; 257-484, pls 33-60, 1854 (1); 1-92, pls 61-72, 1854; 93-284, pls 73-96, 1855; 285-412, pls 97-112, 1856; 413-540, pls 113-128, 1857; 541-661, pls 129-138, 1858 (2). vol 2; pp 45-78 Oct.-Nov. 1854; pp 97-99 Jan 1855; p 632-635 Nov 1858; pls. 62-68, 137, fig. 14; pl 138, fig. 1.
    Affeld, S., H. Wägele, C. Avila, S. Kehraus, and G. M. Koenig. n.d. Distribution of homarine in some Opisthobranchia (Gastropoda : Mollusca). Bonner Zoologische  Beiträge 55(3-4):181-190.
    Aguado, F., and S. López González. 2015. Moluscos Nudibranquios de la Costa Tropical. Asociación Buxus & Ayuntamiento de Motril.
    Aguado Jiménez, F., and A. Marín. 2007. Warning coloration associated with nematocyst-based defences in aeolidiodean nudibranchs. Journal of Molluscan Studies 73(1):23-28.
    Alder, J., and A. Hancock. 1855. A monograph of the British nudibranchiate Mollusca: with figures of all the species. Ray Society, London.
    Altimira, C., M. F. Huelin, and J. Ros. 1981. Mol·luscs bentònics de les illes Medes (Girona). I. Sistemàtica. Butll. Inst. Cat. Hist. Nat. (Sec. Zool.), 47: 69-75.
    Avila, C. 1992. A preliminary catalogue of natural substances of opisthobranch molluscs from western Mediterranean and near Atlantic. Scientia Marina 56(4):373-382.
    Avila, C. 1995. Natural products of opisthobranch molluscs: a biological review. Oceanography and Mar Biol: an Annual Review 33: 487-559.
    Ayer, S. W., and R. J. Andersen. 1982. Steroidal antifeedants from the dorid nudibranch Aldisa sanguinea cooperi. Tetrahedron Letters 23(10):1039-1042.
    Ballesteros, M. 1982. Nota preliminar sobre la fauna de nudibranquios de la isla de Ibiza. Actas II Simposio Ibérico de Estudios del Bentos Marino 3: 229-234.
    Ballesteros, M. 1980. Contribución al conocimientos de los Sacoglosos y Nudibranquios (Mollusca: Opisthobranchia). Estudio anatómico, sistemático y faunístico de las especies del mediterráneo español. Tesis Doctoral. Universitat de Barcelona.
    Ballesteros, M. 2007. Lista actualizada de los opistobranquios (Mollusca: Gastropoda: Opisthobranchia) de las costas catalanas. Spira. 2: 163–188.
    Ballesteros, M. 1984. Nudibranquios: miscelanea de formas y coloraciones. Immersio 3(4):20-24.
    Ballesteros, M. 1991. Els Opistobranquis. pp. 416-427. In: Historia Natural dels Països Catalans,  Invertebrats no artròpodes. Enciclopèdia Catalana. Barcelona.
    Ballesteros, M., C. Álvarez, and B. Mateo. 1986. Aproximación a la fauna de opistobranquios de la isla de Menorca. Publicaciones del Departamento de Zoología (Barcelona) 12: 93-106.
    Ballesteros, M., A. Barrajón, A. Luque, D. Moreno, P. Talavera, and J. Templado. 1986. Contribución al conocimiento de los Moluscos Gasterópodos marinos de Almería. Iberus, 6: 39-57.
    Ballesteros, M., E. Madrenas, and M. Pontes. 2019. OPK - Opistobranquis. (https://opistobranquis.info/).
    Ballesteros, M., E. Madrenas, and M. Pontes. 2016. Actualización del catálogo de los moluscos opistobranquios (Gastropoda: Heterobranchia) de las costas catalanas. Spira 6(2016): 1-28.
    Ballesteros, M., M. Pontes, and E. Madrenas. 2015. Opisthobranch from Medes Islands (Marine Protected Area, Costa Brava, Catalonia, NE Spain): 40 years of study.
    Barash, A., and Z. Danin. 1992. Annotated list of Mediterranean molluscs of Israel and Sinai, viii, Fauna Palaestina, Mollusca I. ed. Israel Academy of Sciences &  Humanities.
    Barash, A., and Z. Danin. 1988. Contribution to the knowledge of Opisthobranchia of Cyprus. Bollettino Malacologico (Pubblicazione Mensile Edita dalla Societa Italiana di Malacologia) 24(9-12):243- 260.
    Barash, A., and Z. Zenziper. 1984. On the food of some opisthobranchs found in the Mediterranean waters of Israel. Levantina (Israel Malacological Society) 51:585-598.
    Barletta, G. 1981. Gasteropodi nudi (Pleurobranchomorpha, Sacoglossa, Aplysiomorpha e Nudibranchia) Consiglio Nazionale delle Richerche, Guide per il riconoscimento delle specie animali delle acque lagunari e costiere italiane AQ/1/92, 3. Quaderni della Civica Stazione Idrobiologica di Milano (9):1-124.
    Barletta, G., and G. Melone. 1976. Nudibranchi del Promontorio di Portofino (Genova) (Gastropoda Nudibranchia). Natura, Societa Italiana di Scienze Naturali, Milano 67(3-4):203-236.
    Barletta, G., M. Mariani, and C. Perego. 1990. Considerazioni preliminari sugli opistobranchi viventi nella baia di Paraggi (Ge). Lavori della Societa Italiana di Malacologia 23:247-260.
    Bavestrello, G., C. Cerrano, R. Cattaneo-Vietti, and M. Sara. 1996. Relations between Eudendrium glomeratum (Cnidaria, Hydromedusae) and its associated vagile fauna. Sci.-Mar.-Barc. 60(1):137-143.
    Bedulli, D., R. Cattaneo-Vietti, R. Chemello, F. Ghisotti, and F. Giovine. 1995. Gastropoda Opisthobranchia, Divasibranchia, Gymnomorpha, Fascicolo 15, pp. 1-23.  In: A. Minelli, A. Ruffo, & S. La Posta (Eds.). Checklist delle specie fauna italiana, Checklist delle specie della Fauna Italiana. Calderini, Bologna.
    Bergh, L. S. R. 1873. Malacologische Untersuchungen, In: Reisen im Archipel der Philippinen von Dr Carl Gottfried Semper. Zweiter Theil. Wissenschaftliche Resultate. Band 2, Theil 1, Heft 5; pp 205-246, pls. 25-31.
    Bergh, L. S. R. 1870. Malacologische Untersuchungen, In: Reisen im Archipel der Philippinen von. Zweiter Theil. Wissenschaftliche Resultate. Band 2, Theil I, Heft 1; pp 1-30, pls. 1-8.
    Bergh, L. S. R. 1885. Beitrage zur Kenntniss der Aeolidiaden. VIII. Verhandlungen der koniglich-kaiserlich Zoologisch- botanischen Gesellschaft in Wien (Abhandlungen) 35(1):1-60, pls. 1- 7.
    Bergh, L. S. R. 1875. Beitrage zur Kenntniss der Aeolidiaden. III. Verhandlungen der koniglich-kaiserlich Zoologisch-botanischen Gesellschaft in Wien (Abhandlungen) 25:633-658, pls. 13-15.
    Bergh, L. S. R. 1890. Die cladohepatischen Nudibranchien. Zoologische Jahrbucher, Abtheilung fur Systematik Geographie und Biologie der Thiere 5:1-75.
    Bergh, L. S. R. 1879. On the nudibranchiate gasteropod Mollusca of the North Pacific Ocean, with special reference to those of Alaska. Scientific Results of the Exploration of Alaska 1, Art. 5, (1):127-188, pls. 1-8.
    Bergh, L. S. R. 1908. Malacologische Untersuchungen, In: Reisen im Archipel der Philippinen von Dr Carl Gottfried Semper. Zweiter Theil. Wissenschaftliche Resultate. Band 9, Theil 6, Heft 3; pp 119-181, pls. 9-12.
    Bergh, R. 1892. System der Nudibranchiaten Gasteropoden. Malacologische Untersuchungen. In: Reisen im Archipel der Philippinen von Dr. Carl Gottfried Semper. Zweiter Theil#Wissenschaftliche Resultate. Band 7, Theil 5. [pp. 1–51, pls 1–4, Mar. 1897; pp. 53–115, pls 5–8, Dec. 1897; pp. 117–158, pls 9–12, Nov. 1898; pp. 159–208, pls 13–16, 27 Mar. 1900; pp. 209–256, pls 17–20, 29 Jan. 1901; pp. 257–312, pls. 21–24, 15 Oct. 1901; pp. 313–382, pls 25–29, 7 Oct. 1902].
    Bergh, L. S. R. 1878. Malacologische Untersuchungen, In: Reisen im Archipel der Philippinen von Dr Carl Gottfried Semper. Zweiter Theil. Wissenschaftliche Resultate. Band 2, Theil 2, Heft 14; pp 603-645, I-L, pls. 66-68.
    Bibiloni, M. A. 1981. Estudio faunistico del litoral de Blanes: V. Sistematica de Moluscos y Artropodos (Crustaceos y Picnogonidos). Miscellania Zool gia, Museu de Zoologia, Barcelona 7:43-52.
    Bielecki, S., G. Cavignaux, J. M. Crouzet, and S. Grall. 2011. Des limaces de rêve.
    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.
    Calvín Calvo, J. C. 1995. El ecosistema marino mediterráneo, guía de su fauna y su flora.
    Capdevila, M., and J. Folch. 2009. Fauna malacològica del Parc Subaquàtic de Tarragona (el Tarragonès, Catalunya, Espanya). SPIRA Vol. 3 Núms. 1-2 Pàg. 33-51.
    Carmona, L., M. Pola, T. M. Gosliner, and J. L. Cervera. 2015. Protaeolidiella atra Baba, 1955 versus Pleurolidia juliae Burn, 1966: One or two species? Helgol Mar Res 69:137-145.
    Carmona, L., M. Pola, T. M. Gosliner, and J. L. Cervera. 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. 1982. Opisthobranch molluscs of the Sorrentine Peninsula caves. Bollettino dei  Musei e degli Istituti Biologici dell’Università di Genova [Atti del XIV Congresso della Societa Italiana  di Biologia Marina] 50(suppl.):376-377.
    Cattaneo-Vietti, R. 1986. Alcune considerazioni sui molluschi opistobranchi del Mar Ligure. Lavori Societa Italiana di Malacologia 22:85-96.
    Cattaneo-Vietti, R., and G. Barletta. 1984. Elenco preliminare dei molluschi opistobranchi viventi nel Mediterraneo (Sacoglossa, Pleurobranchomorpha, Acochlidiacea, Aplysiomorpha, Nudibranchia). Bollettino Malacologico (Pubblicazione Mensile Edita dalla Societa Italiana di Malacologia) 20(9-12):195-218.
    Cattaneo-Vietti, R., and R. Chemello. 1987. Alcune considerazioni sui molluschi opistobranchi della Sicilia. Bollettino Malacologico (Pubblicazione Mensile Edita dalla Societa Italiana di Malacologia) 23(5-8):207-222.
    Cattaneo-Vietti, R., and G. F. Russo. 1987. Molluscs from submarine caves of the Sorrentine Peninsula (southern Tyrrhenian Sea). Stygologia 3(2):138-148.
    Cattaneo-Vietti, R., and T. E. Thompson. 1989. Mediterranean opisthobranch molluscs: a zoogeographic approach. Bollettino Malacologico (Pubblicazione Mensile Edita dalla Societa Italiana di Malacologia) 25(5-8):183-204.

    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, Manuel, Enric Madrenas, Miquel Pontes (2012-2019) "Flabellina affinis" in OPK-Opistobranquis, Published: 17/05/2012, Accessed: 14/10/2019 at (https://opistobranquis.info/en/uGvW0)

In order to copy this cite or text fragments you must be a registered user.