Home Guide to Opisthobranchs Aplysiida Aplysia parvula

Aplysia parvula

Aplysia parvula (Guilding in Morch, 1863)

Aplysia parvula by Enric Madrenas

Taxonomy
 

Superdomain

Biota  

 

Kingdom

Animalia  

 

Phylum

Mollusca  

 

Class

Gastropoda  

 

Subclass

Heterobranchia  

 

Infraclass

Euthyneura  

 

Subterclass

Tectipleura  

 

Order

Aplysiida  

 

Superfamily

Aplysioidea  

 

Family

Aplysiidae  

 

Genus

Aplysia  

 

Species

Aplysia parvula  Mörch, 1863

 
 Classification according to Bouchet et al. (2017)
Taxonomic source: World Register of Marine Species (AphiaID: 138757).
Taxonomic note: According to a recent paper by Golestani et al (2019) all Mediterranean sea hares classified as Aplysia parvula are Aplysia punctata. However, considering there are many “morphotypes” of Aplysia parvula and Aplysia punctata with more than evident morphologic differences (we have observed many types of small Aplysia in our sampling dives), we stick to the former denomination until further studies are published on this group.

Synonyms

  • Aplysia allochroa Bergh, 1908
  • Aplysia anguilla Sowerby G.B. II, 1869
  • Aplysia atromarginata Bergh, 1905
  • Aplysia australiana Clessin, 1899
  • Aplysia concava G.B. Sowerby I, 1833
  • Aplysia intermedia Farran, 1905
  • Aplysia japonica Sowerby G.B. II, 1869
  • Aplysia lobata Bergh, 1908
  • Aplysia norfolkensis G. B. Sowerby II, 1869
  • Aplysiopsis juanina Bergh, 1898
  • Syphonota elongata Pease, 1860

Description
Mediterranean specimens of this species usually have a size of about 20 mm, although a maximum length of 60 mm is quoted in the literature. The general colour of the body is reddish brown or greenish-brown due to a thick brown lattice defining pink or green polygonal areas with an irregular white spot inside. They also tend to have some white spots formed by clusters of white spots scattered over the head, neck, behind the base of the rhinophores, sides of the body and parapodia. The head, as in all species of the genus is very well developed, with a long neck that joins the body; cephalic tentacles are wound in longitudinal direction and its top is usually black, the rhinophores are auriculate, short and thin, with a black pointed end. In front of and slightly outside of the base of the rhinophores the eyes can be located inside of a slightly protruding whitish circular area. On the right side of the body there is a spermal groove that goes from the mantle cavity to near the base of the rhinophore. The parapodia are short and are fused near the tail; the edge of the parapodia is bordered by a wide black band, sometimes interrupted by white spots. The dorsal mantle that covers the viscera is very thin and has a large oval foramen through which the shell can be observed. Under the right edge of the shell some thick black granules corresponding to the purple gland could be observed. The pinkish gill is semitransparent and it is fusioned to the front area of the mantle cavity. The yellowish shell is partially covered by the mantle, spiralled at the apex only while the rest is flattened; is calcified only in the central area, the rest of it being flexible. When evaginated, penis is pink and shaped like a flattened spoon with a basal sheath. The foot is pink but the front and rear ends which are black, may have white granulations on the lateral margins. The tail end is narrow and pointed.

Biology
Aplysia parvula is a species that is widely distributed throughout the upper infralittoral floor and has occasionally been cited in circalittoral bottoms. It is generally found associated with different red algae as Sphaerococcus coronopifolius, Laurencia obtusa and Delisea pulchra, as it feeds on them, and acquires its colour. In the absence of red algae it can also feed on green algae, in that case specimens use to be of greenish tones. It may accumulate secondary metabolites, of the type of furanones, from the red algae it feeds on, it is cited to be occasionally predated by certain species of pycnogonids and nemerteans in the Pacific Ocean. As in other opisthobranchs, A.parvula is hermaphrodite and, as happens with the other species of the genus, several specimens (4-5) mate together, copulating in chains: the individual in front of the chain receives sperm from the next, thereby acting as a female, intermediate specimens of the chain give sperm to the speciment in front of them while receiving sperm from the animal on their back, acting both as male and female, and last in the chain gives sperm to the animal in front of it, being the only one acting as male. Shortly after mating the fertilized specimens lay their eggs, forming of a very convoluted bead of about 0.6 mm in diameter with numerous pink or reddish eggs of 80-100 microns in diameter. It can be confused with juveniles of Aplysia punctata or Aplysia fasciata because the parapodia of these species lack the black rim of the parapodia. In case of very dark specimens of A.parvula where the black rim of parapodia is not visible, they can be told apart because juveniles of the other Aplysia tend to have a red or light brown coloured body.

Etymology

  • Aplysia. From the Greek word meaning “dirty”
  • Parvula. Latin word meaning “very small”

Distribution
This species was described in 1863 on the island of St. Thomas in the West Indies and later findings since then have shown that it is a circumtropical distribution species, mostly found between 40°N and 40°S. In the Atlantic it has been located in the intertidal of Brazil, in the Gulf of Mexico, Curaçao, Puerto Rico, Florida coast, the British Isles, in both the Atlantic and Mediterranean shores of the Iberian Peninsula, in the Balearic islands, in the Canary islands, Madeira, Açores, and off coast in South Africa. In the Pacific it has been located in the Gulf of California, Japan, Korea, Hawaii islands, Marshall islands, Indonesia, Australia, New Zealand and the Red Sea. In the Mediterranean it has been found both in the eastern basin (Turkey, Greece, Israel) and the western basin (Malta, Naples, Gulf of Taranto, Ligurian sea, Tangier). It has been postulated that Mediterranean colonization of this species has it origin on a Lessepsian migration through the Suez Canal, a fact that has not yet been demonstrated. In the Catalan coast is is often found living on soft stiped red algae; it has been cited in Cala Sant Antoni and Es Caials (Cadaques), Roses, L’Escala, Illes Medes, Cala Aiguafreda and Cala Aiguablava (Begur), Tossa de Mar and Blanes.

Known georeferenced records of the species: Aplysia parvula
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 Aplysia parvula based on our own records.

More pictures

Aplysia parvula
Aplysia parvula
Aplysia parvula
Aplysia parvula (copula) by Miquel Pontes
Aplysia parvula (copula) by Miquel Pontes
Aplysia parvula in copula by Miquel Pontes
Aplysia parvula by Miquel Pontes

Bibliography

    Avila C, Azevedo JMN, Gonçalves JM, et al. 1998. Checklist of the shallow-water marine molluscs of the Azores: 1 – Pico, Faial, Flores and Corvo. Açoreana 8 (4): 487-523.
    Bacallado JJ, Ortea J, Moro L, et al. 2008. Inventario de los moluscos de la marina de Arrecife, Lanzarote. Canarias Conservación.:1–32. Available from https://www.canariasconservacion.org/LA%20MARINA/DOC-16-Inventario%20de%20los%20moluscos%20de%20la%20marina%20de%20arrecife%202008.pdf.
    Ballesteros M. 2007. Lista actualizada de los opistobranquios (Mollusca: Gastropoda: Opisthobranchia) de las costas catalanas. Spira. 2(3):163–188.
    Ballesteros M, Templado J. 1987. Aplysia parvula en las costas de la península ibérica. Publicaciones del Departamento de Zoología (Barcelona) 13: 55-62.
    Ballesteros M, Álvarez C, Mateo B. 1986. Aproximación a la fauna de opistobranquios de la isla de Menorca. Publicaciones del Departamento de Zoología (Barcelona) 12: 93-106.
    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. 2024. OPK - Opistobranquis. Available from https://opistobranquis.info/.
    Bebbington A. 1975. On a collection of Aplysia species from Naples with a note on the distribution of Aplysia parvula (Gastropoda, Opisthobranchia) in the Mediterranean. Pubbl. Staz. Zool Napoli 39: 121-8.
    Bebbington A. 1977. Aplysiid species from eastern Australia with notes on the Pacific Ocean Aplysiomorpha. Trans. Zool. Soc. Lond. 34 1: 87-147.
    Bebbington A, Brown GH. 1975. Aplysia parvula Guilding in Morch, an opisthobranch new to the British fauna. J Conch 28: 329-333.
    Bergh LSR. 1905. Die Opisthobranchiata der Siboga-Expedition. Monographie 50, pp. 1-248, pls. 1-20.
    Bielecki S, Cavignaux G, Crouzet JM, et al. 2011. Des limaces de rêve.
    Branch GM. 2002. Two Oceans. 5th impression. David Philip, Cate Town & Johannesburg.
    Burn R. 2006. A checklist and bibliography of the Opisthobranchia (Mollusca: Gastropoda) of Victoria and the Bass Strait area, south-eastern Australia. Museum Victoria Science Reports 10:1–42.
    Caballer M, Ortea J, Rivero N, et al. 2015. The opisthobranch gastropods (Mollusca: Heterobranchia) from Venezuela: an annotated and illustrated inventory of species. Zootaxa 4034 (2): 201–256.
    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.
    Camacho-Garcia Y, Gosliner T, Valdes A. 2005. Guía de Campo de las babosas marinas del Pacífico Este tropical. S.l.: California Academy of Sciences.
    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.
    Çevik C, Gündoğdu S. 2016. Marine mollusca of Mediterranean coast of Turkey. Turkish Marine Research Foundation 43: 184-197.
    Çinar ME, Bilecenoglu M, Öztürk B, et al. 2011. An updated review of alien species on the coasts of Turkey. Mediterranean Marine Science, 12(2): 257-315.
    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.
    De la Cruz-Francisco V, Ortigosa D, González González M. 2017. Primeros registros de babosas marinas (Gastropoda: Heterobranchia) del Sistema Arrecifal Tuxpan, México, con ampliaciones de ámbito de distribución. Biodiversity and Natural History (2017) Vol. 3, No. 1, 15-23.
    De Nys R, Steinberg PD, Rogers CN, et al. 1996. Quantitative variation of secondary metabolites in the sea hare Aplysia parvula and its host plant, Delisea pulchra. Marine Ecology Progress Series 130(1-3):135-146.
    Domènech A, Avila C, Ballesteros M. 2002. Spatial and Temporal variability of the Opisthobranch molluscs of Port Lligat Bay (Catalonia, NE Spain). Journ. Moll. Stud., 68:29-37.
    Eales NB. 1957. Revision of the species of Aplysia of the Muséum National d’Historie Naturelle (Malacologie), Paris. Bulletin du Museum National d’Histoire Naturelle (Paris) 2e série, 29 (3): 246-255.
    Eales NB. 1957. Aplysiids from West Africa, with description of a new species, Aplysia winneba. Proceedings of the Malacological Society of London 32(4): 179-183.
    Eales NB. 1960. Revision of the world species of Aplysia. Bulletin of the British Museum, Natural History (Zoology) 5: 269-404.
    Frank, B. et al. 1998 2014. Aplysia parvula accessed through: JaxShells.org on 2014-12-14. Available from http://www.jaxshells.org/opis24.htm.
    García-Gómez JC, Cervera JL, García FJ, et al. 1989. Resultados de la Campaña Internacional de Biología Marina “Ceuta-86”: Moluscos Opistobranquios. Bollettino Malacologico. 25:223–232.
    García-Gómez JC, Cervera JL, García FJ, et al. 1991. Resultados de la campaña internacional de biología marina “Algarve 88”: moluscos opistobranquios. Bollettino Malacologico 27 (5-9): 125-138.
    Golestani H, Crocetta F, Padula V, et al. 2019. The little Aplysia coming of age: from one species to a complex of species complexes in Aplysia parvula (Mollusca: Gastropoda: Heterobranchia). Zoological Journal of the Linnean Society, XX: 1-52.
    ICZN. 1959. Opinion 560. Protection under the Plenary Powers of the specific name. Zoological Nomenclature, 20(27): 293-302.
    Imamoto J. 2001 2014. Aplysia parvula accessed through: Umiushi.info on 2014-12-14. Available from http://www.umiushi.info/kanri/photo_sql_eng.php?act=PSP&gakumei1=Aplysia&gakumei2=parvula&location_code=0000#.
    Lance JR. 1971. Observations on the sea hare Aplysia parvula (Gastropoda: Opisthobranchia) from the Gulf of California. Veliger 14 (1):60-63.
    Long SJ. 2006. Bibliography of Opisthobranchia 1554-2000. Bayside Books & Press, Tustin, CA, U.S.A. 672p.
    Malaquias MAE. 2001. Updated and annotated checklist of the opisthobranch molluscs (excluding Thecosomata and Gymnosomata), from the Azores archipelago (North Atlantic Ocean, Portugal). Iberus 19 (1): 37-48.
    Malaquias MA, Calado GJP. 1997. The malacological fauna of Salvage Islands - 1. Opisthobranch Molluscs. Bol. Mus. Mun. Funchal, 49(281): 149-170.
    Malaquias MAE, Cervera JL, López-González PJ. 2001. The Opisthobranch Molluscs from Porto Santo Island (Madeira Archipelago, Northeastern Atlantic Ocean). Iberus 19 (1): 75-82.
    Malaquias MAE, Calado G, Da Cruz JF, et al. 2014. Opisthobranch molluscs of the Azores, results of the IV Internationa Workshop of Malacology and Marine Biology (4-13 July 2011) (Mosteiros, São Miguel, Azores). Açoreana, 2014, Supplement 10: 139-147.
    Malaquias M, Calado G, Padula V, et al. 2009. Molluscan diversity in the North Atlantic Ocean: new records of opisthobranch gastropods from the Archipelago of the Azores. Marine Biodiversity. 2:e38.
    Martín D, Dantart L, Ballesteros M. 1990. Moluscos de la concreciones de algas calcáreas del litoral catalán (NE España). Lavori S.I.M. Napoli, 23: 445-456.
    Martínez Cueto-Felgueroso E. 1995. El orden Anaspidea (Mollusca: Opisthobranchia) en el Atlántico y Mediterráneo próximo: Revisión taxonómica y estudio de los metabolitos secundarios [Tesis Doctoral]. Oviedo, Spain: Universidad de Oviedo. 381 p.
    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.
    Menéndez JL, Oliveros J. 2004 2015. Aplysia parvula accessed through: AsturNatura on 2015-02-05. Available from http://www.asturnatura.com/especie/aplysia-parvula.html.
    Miyamoto T, Ebisawa Y, Higuchi R. 1995. Aplyparvunin, a bioactive acetogenin from the Sea Hare Aplysia parvula. Tetrahedron Letters 36(34):6073-6074.
    Mörch OAL. 1863. Contributions la faune malacologique des Antilles danoises. Journal de Conchyliologie, 11: 21-43.
    Moro L, Martín Esquivel JL, Garrido Sanahuja MJ, et al. 2003. Lista de especies marinas de Canarias (algas, hongos, plantas y animales). Consejería de Política Territorial y Medio Ambiente del Gobierno de Canarias. 248 p.
    Naya Garmendia LM. 2016. Nudibranquios de la Costa Vasca: el pequeño Cantábrico multicolor. Aquarium de Donostia-San Sebastián.
    Nimbs MJ, Wilson NG. 2021. Saved by the Shell: Molecular Analysis Detects the Cryptic Sea Hare, Aplysia concava G. B. Sowerby I, 1833 (Mollusca: Heterobranchia: Aplysiidae), from Oceania, with a Redescription. Taxonomy. 1:48–59. https://doi.org/10.3390/taxonomy1020006.

    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) "Aplysia parvula" in OPK-Opistobranquis. Published: 15/05/2012. Accessed: 19/04/2024. Available at (https://opistobranquis.info/en/?p=359)

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