Placida cremoniana

Placida cremoniana (Trinchese, 1892)

Placida cremoniana @ Punta del Plom, Begur (Spain) 14-06-2008 by Miquel Pontes

Taxonomy
 

Superdomain

Biota  

 

Kingdom

Animalia  

 

Phylum

Mollusca  

 

Class

Gastropoda  

 

Subclass

Heterobranchia  

 

Infraclass

Euthyneura  

 

Subterclass

Tectipleura  

 

Superorder

Sacoglossa  

 

Superfamily

Plakobranchoidea  

 

Family

Limapontiidae  

 

Genus

Placida  

 

Species

Placida cremoniana  (Trinchese, 1892)

 
 Classification according to Bouchet et al. (2017)
Taxonomic source: World Register of Marine Species (AphiaID: 141564).
Synonyms

  • Ercolania trinchesii Pruvot-Fol, 1951
  • Hermaea carminis Fez, 1962
  • Hermaea cremoniana Trinchese, 1892 (original)

Description
The specimens can reach a size of 10 mm in length. The coloration is very peculiar and distinctive from other saccglossans. The head, the rhinophores, the back and sides of the animal and the upper third of the cerata are dark purple, almost black, while the head veil, the foot, the basal third of the cerata and a band on each side of the body are yellow gold. The body is very slim, the head has a rounded fold or cephalic veil. The rhinophores are auriculate and slightly wider at the base, there is a grayish-white longitudinal band on the outside of the rhinophores that continues behind their base, forming a “V” feature near the eyes. The cerata are fairly numerous and evenly cover the back of the animal, showing no clear sign of grouping. Their size increases from the ones located in the sides to the ones located dorsally. The shape of the cerata is elongated, with an enlarged mittle part and a sharpened tip. The cardiac region is in the dorsal half, at the height of the first cerata, and right before it there is the anal papilla, colored deep purple but with a white top. The foot is narrow, the anterior part somewhat broadened and the tail is short and narrow.

Biology
This species usually lives in shallow waters between different photophilic algae as Halimeda tuna, several Rhodophycean and Phaeophycean algae and also in Posidonia oceanica meadows . In Japan this species have been found to eat the thalli of the chlorophycean algae Derbesia but with European specimens nothing else is really known about their food, as nothing is known about where or how it gets the decorating pigment for the body. The spawn is an egg ribbon in the shape of a crescent or a nearly complete circle, with a diameter of 2 mm; eggs are small, of about 50-60 microns in diameter.

Etymology

  • Placida. From Latin “placeō”, please, satisfy. Also means placid, gentle, quiet, still, calm, mild, peaceful.
  • Cremoniana. From Cremona, city located in the North of Italy, between Pavia and Parma, near Genoa.

Distribution
This species was originally described from the coast of Naples (Italy) but since then, it has been cited in the Mediterranean Sea (both in Eastern and Western coasts) and the near Eastern Atlantic (Canaries, Madeira and Azores). In the Iberian Peninsula it has been observed in most of its coastline, both Mediterranean and Atlantic and in the Balearic islands. In Catalonia it is easy to spot on seaweeds hanging from rocky walls in the Costa Brava and along the coast of Barcelona. According to McCarthy et al (2017) there are several similar species forming a cryptic group with Placida cremoniana:

  • Placida cremoniana – Mediterranean Sea and NE Atlantic
  • Placida brookae – California (USA) and Galapagos (Ecuador)
  • Placida kevinleei – Japan and Hawaii (USA)
  • Placida barackobamai – Australia, Hawaii (USA), Japan and Guam

They could be differentiated visually by using the following visual key:

Placida cremoniana complex diagnostic key by McCarthy et al (2017)

Placida cremoniana complex diagnostic key from McCarthy et al (2017)

Known georeferenced records of the species: Placida cremoniana
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:2 out of 5 stars
    Eastern Mediterranean:2 out of 5 stars
    Atlantic Ocean:2 out of 5 stars
Month

This chart displays the monthly observation probability for Placida cremoniana based on our own records.

More pictures

Bibliography

    Ballesteros, M. 1980. La presencia en las costas catalanas de Hermaea paucicirra y Hermaea cremoniana (Opisthobranchia: Sacoglossa). Publ. Dpto. Zool. Barcelona, 5: 19-23.
    Ballesteros, M. 1985. Contribución al conocimiento de los Sacoglosos y Nudibranquios (Mollusca: Opisthobranchia). Estudio anatómico, sistemático y faunístico de las especies del Mediterráneo español. Resumen de Tesis Doctoral. Universitat de Barcelona.
    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., 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.
    Bielecki, S., G. Cavignaux, J. M. Crouzet, and S. Grall. 2011. Des limaces de rêve.
    Caballer, M., J. Ortea, N. Rivero, G. Carias-Tucker, M. A. E. Malaquías, and S. Narciso. 2015. The opisthobranch gastropods (Mollusca: Heterobranchia) from Venezuela: an annotated and illustrated inventory of species. Zootaxa 4034 (2): 201–256.
    Camacho-Garcia, Y., T. Gosliner, and A. Valdes. 2005. Guía de Campo de las babosas marinas del Pacífico Este tropical. California Academy of Sciences, S.l.
    Cervera, J. L. 1988. Notaspideos, ascoglosos y nudibranquios, (mollusca : opisthobranchia) de Andalucía Occidental con algunas referencias al litoral del Estrecho de Gibraltar : estudio faunístico y sistemático. Tesis Doctoral. Universidad de Sevilla.
    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.
    De Fez, S. 1974. Ascoglosos y Nudibranquios de España y Portugal. CSIC. Valencia, Spain: 325 pp.
    Flanders Marine Institute. 2018. Maritime Boundaries Geodatabase: Territorial Seas. Maritime Boundaries Geodatabase. (http://www.marineregions.org/).
    Fontes, J., F. Tempera, and P. Wirtz. 2001. On some interesting opisthobranchs (Mollusca, Gastropoda) from the Azores. Arquipélago (Life and Marine Sciences) 18 A: 85-87.
    Frank, B. et al. 1998. Placida cremoniana accessed through: JaxShells.org on 2014-12-14. (http://www.jaxshells.org/paci46.htm).
    García Raso, J. E., A. A. Luque, J. Templado, C. Salas, E. Hergueta, D. Moreno, and M. Calvo. 1992. Fauna y Flora marinas del Parque Natural de Cabo de Gata-Nijar, 1a 9/1992. ed. Luque del Villar, Ángel Antonio, Madrid.
    García-Gómez, J. C. 1983. Moluscos Opistobranquios del Estrecho de Gibraltar y Bahía de Algeciras. Iberus 3: 41-46.
    García-Gómez, J. C., J. L. Cervera, F. J. García, and C. M. López de la Cuadra. 1989. Resultados de la Campaña Internacional de Biología Marina “Ceuta-86”: Moluscos Opistobranquios. Bollettino Malacologico 25: 223-232.
    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.
    Imamoto, J. 2001. Placida cremoniana accessed through: Umiushi.info on 2014-12-14. (http://www.umiushi.info/kanri/photo_sql_eng.php?act=PSP&gakumei1=Placida&gakumei2=cremoniana&location_code=0000#).
    Long, S. J. 2006. Bibliography of Opisthobranchia 1554-2000. Bayside Books & Press, Tustin, CA, U.S.A. 672p.
    Malaquias, M., G. Calado, V. Padula, G. Villani, and J. L. Cervera. 2009. Molluscan diversity in the North Atlantic Ocean: new records of opisthobranch gastropods from the Archipelago of the Azores. Marine Biodiversity. 2: e38.
    Marín, A., and J. Ros. 1987. Catálogo preliminar de los gasterópodos marinos del sudeste español. Iberus 7 (1): 137-145.
    Marín, A., and J. D. Ros. 1989. The Chloroplast-Animal Association in Four Iberian Sacoglossan Opisthobranchs Elysia timida, Elysia translucens, Thuridilla hopei and Bosellia mimetica. 22nd European Marine Biology Symposium, Barcelona, Spain, August 17-22, 1987. Scient. Mar. 53(2-3):429-440.
    McCarthy, J. B., P. J. Krug, and Á. Valdés. 2017. Integrative systematics of Placida cremoniana (Trinchese, 1892) (Gastropoda, Heterobranchia, Sacoglossa) reveals multiple pseudocryptic species. Marine Biodiversity.
    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. Placida cremoniana accessed through: AsturNatura on 2015-02-05. (http://www.asturnatura.com/especie/placida-cremoniana.html).
    Moro, L., P. Wirtz, J. Ortea, and A. Cabrera. 2000. Cuatro nuevas especies anfiatlánticas del Orden Sacoglossa (Mollusca, Opisthobranchia).
    Moro, L., J. L. Martín Esquivel, M. J. Garrido Sanahuja, and I. Izquierdo Zamora. 2003. Lista de especies marinas de Canarias (algas, hongos, plantas y animales). Consejería de Política Territorial y Medio Ambiente del Gobierno de Canarias.
    Mytilenou, C., E. H. K. Akel, N. Babali, P. Balistreri, M. Bariche, Y. Ö. Boyaci, L. Cilenti, C. Constantinou, F. Crocetta, M. Çelik, H. Dereli, C. Dounas, F. Durucan, A. Garrido-Díaz, V. Gerovasileiou, K. Kapiris, T. Kebapcioglu, P. Kleitou, A. Krystalas, L. Lipej, I. Maina, P. Marakis, B. Mavric, R. Moussa, L. Peña-Rivas, D. Poursanidis, W. Renda, S. I. Rizkalla, A. Rosso, T. Scirocco, F. Sciuto, G. Servello, F. Tiralongo, S. Yapici, and A. Zenetos. 2016. New Mediterranean Biodiversity Records (November, 2016). Medit. Mar. Sci., 17/3, 2016,794-821.
    Ocaña Martín, A., L. Sánchez Tocino, S. López González, and F. Viciana Martín. 2000. Guía submarina de invertebrados no artrópodos. Comares, Granada.
    Ortea, J., J. J. B. L. Moro, and J. Espinosa. 1998. Catálogo abreviado de las especies del orden Sacoglossa (= Ascoglossa, Mollusca: Opisthobranchia) de las Islas Canarias y de Cabo Verde. Revista de la Academia Canaria de Ciencias 10 (4): 85-96.
    Ortea, J. A., L. Moro, J. J. Bacallado, and R. Herrera. 2001. Catálogo actualizado de los Moluscos Opistobranquios de las Islas Canarias. Revista de la Academia Canaria de Ciencias 12 (3-4): 105-136.
    Poddubetskaia, M. 2002. NEMBRO. (http://www.nembro.info).
    Prkić, J., A. Petani, Ð. Iglić, and L. Lanča. 2018. Stražnjoškržnjaci Jadranskoga Mora: Slikovni Atlas i Popis Hrvatskih Vrsta / Opisthobranchs of the Adriatic Sea: Photographic Atlas and List of Croatian Species. Ronilaćki Klub Sveti Roko, Bibinje.
    Rudman W.B. et al. 1998. Placida cremoniana accessed through: Sea Slug Forum on 2014-12-14. (http://seaslugforum.net/showall/stilcrem).
    Sánchez Tocino, L. 2001. Placida cremoniana accessed through: Opistobranquios de la Costa de Granada on 2014-12-14. (http://www.ugr.es/~lstocino/placida_cremoniana.htm).
    Silva, J. P. 2008. Placida cremoniana accessed through: Hypselodoris, Lesmas do Mar on 2014-12-21. (http://hypselodoris.blogspot.pt/2010/02/placida-cremoniana-trinchese-1893.html).
    Templado, J., and R. Villanueva. 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.
    Templado, J., P. Talavera, and L. Murillo. 1983. Adiciones a la fauna de opistobranquios del Cabo de Palos (Murcia) I. Iberus 3: 47-50.
    Trainito, E., and M. Doneddu. 2014. Nudibranchi del Mediterraneo, 2a. ed. Il Castello.
    Trainito, E., and S. Trainito. 2003. Mediterranean harlequins : a field guide to Mediterranean sea slugs. Taphros, Olbia (SS), Italia.
    Trinchese, S. 1893. Nuovi ascoglossi del Golfo di Napoli. Rendiconto dell’Accademia delle Scienze Fisiche e Mathematiche, Napoli 33(6-7): 154-155.
    Valdés, A., J. Hamann, D. W. Behrens, and A. DuPont. 2006. Caribbean sea slugs: a field guide to the opisthobranch mollusks from the tropical northwestern Atlantic. Washington: Sea Challengers Natural History Books. 289 pp.
    Wirtz, P., and H. Debelius. 2003. Mediterranean and Atlantic invertebrate guide. ConchBooks, Hackenheim, Germany.
    WoRMS Editorial Board. 2018. World Register of Marine Species. World Register of Marine Species. (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, Manuel, Enric Madrenas, Miquel Pontes (2012-2019) "Placida cremoniana" in OPK-Opistobranquis, Published: 14/05/2012, Accessed: 22/07/2019 at (https://opistobranquis.info/en/rOsTZ)

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