Doto dunnei Lemche, 1976
Doto dunnei, “Depuradora” (L’Escala, Girona), 21/04/2012 by Enric Madrenas
Description
The specimens of this species can grow up to 25mm in length. The general coloration is yellowish or “cream” color, more intense in the cerata than in the body. Larger animals may have up to 8 pairs of cerata along the body. The head is small with slightly protruding cephalic veil lateral lobes, the coloration is the same as the dorsum. The rhinophores are transparent and very long (3 times the length of the rhinophoric sheath) with a white spotted pigmentation also found in the margins of rhinophoric sheaths. The anal papilla, well developed, is located between the first and second pair of cerata on the right side, with a white spots pigmentation on its margin. The genital opening, accompanied by a small bump is located under the first right cerata. Among its most notable features, apart from its size, are the large cerata with several tubercle concentric rings, with 5-9 tubercles each, that decrease in size from the apex to the base of the cerata. As a unique feature, they could have concentric rings shaped stains around the tubercles (apart from the typical score in the apex of the tubercle), with a more or less intense black-violet coloration. The apical tubercle is large and round. Another very characteristic feature are its well developed pseudobranchs, the largest ever described for this genus, consisting of several relatively large and protruding transparent lamellae, with a secondary pigmentation in the form of white dots (not always). The heart area forms a large bump in the dorsum which, as in the rest of the back and sides, have various shapes and sizes dark brown spots. The secondary coloration pattern is very irregular even within the same individual, there are well developed individuals very depigmented, to almost completely pigmented cerata.
Biology
The substrate on which we can find this species is limited to hydrarians of the genus Kirchenpaueria and more specifically to the species K. pinnata (a fact that has also been confirmed on the Catalan coast recordings), which it feeds on, and it spawns on. The spawn measures between 0.5 and 1 cm in diameter, and like in other species of the genus Doto it consists of a whitish wavy ribbon with several double rounds. The egg diameter ranges from 75 to 100 microns being the larger the more mature ones.
Etymology
- Doto, from Latin Doto, a sea nymph, from Greek Dōtō
- Dunnei. After Jimmy Dunne, fish biologist at Galway University
Distribution
This species is mainly distributed in northern European waters, preferably British Isles, coast of Ireland and the Iberian Peninsula, where it is cited for the Bay of Biscay, Galicia, Portugal and the coast of the Strait of Gibraltar. In the Catalan coast it has been observed on the Costa Brava in the Medes Islands, L’Escala and Tossa de Mar, which means the first records for the species in the Mediterranean Sea.
Similar species
Doto cervicenigra, with a black stain on the head, globulous ceratal tubercules, rhinophores twice as long as the sheath.
Abundance
Western Mediterranean: | ★☆☆☆☆ |
Eastern Mediterranean: | ☆☆☆☆☆ |
Atlantic Ocean: | ★★☆☆☆ |
MonthThis chart displays the monthly observation probability for Doto dunnei based on our own records.
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Bibliography
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Anderson, J. 1999. Doto dunnei accessed through: Scottish Nudibranchs on 2014-12-21. (
http://www.nudibranch.org/Scottish Nudibranchs/doto-dunnei.html).
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.
Ballesteros, M., M. Pontes, and E. Madrenas. 2019. Els nudibranquis del mar català. Brau Edicions, Figueres.
Ballesteros, M., M. Pontes, and E. Madrenas. 2015. Opisthobranch from Medes Islands (Marine Protected Area, Costa Brava, Catalonia, NE Spain): 40 years of study.
Ballesteros, M., E. Madrenas, and M. Pontes. 2016. Actualización del catálogo de los moluscos opistobranquios (Gastropoda: Heterobranchia) de las costas catalanas. Spira. 6: 1–28.
Ballesteros, M., E. Madrenas, and M. Pontes.
2023. OPK - Opistobranquis. (
https://opistobranquis.info/).
Brown, G. H., and B. E. Picton. 1979. Nudibranchs of the British Isles — a colour guide. Underwater Conservation Society, Manchester, by R. Earll.
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.
Calado, G., M. Malaquias, C. Gavaia, J. L. Cervera, C. Megina, B. Dayrat, Y. Camacho, M. Pola, and C. Grance. 2003. New data on opisthobranchs (Mollusca: Gastropoda) from the southwestern coast of Portugal. Boletín Instituto Español de Oceanografía 19 (1-4): 199-204.
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 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.
Cattaneo-Vietti, R., R. Chemello, and R. Giannuzzi-Savelli. 1990. Atlas of Mediterranean Nudibranchs. La Conchiglia, Rome, Italy.
Cervera, J. L., J. Templado, J. C. García-Gómez, M. Ballesteros, J. Ortea, F. J. García, J. Ros, and A. A. Luque. 1988. Catálogo actualizado y comentado de los Opistobranquios (Mollusca, Gastropoda) de la Península Ibérica, Baleares y Canarias, con algunas referencias a Ceuta y la isla de Alborán. Iberus, supl. 1: 1-84.
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.
Debelius, H., and R. H. Kuiter. 2007. Nudibranchs of the world. IKAN- Unterwasserarchiv, Frankfurt.
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. 1983. Moluscos opistobranquios del Estrecho de Gibraltar y Bahía de Algeciras. Iberus. 41–46.
García-Gómez, J. C. 1983. Moluscos Opistobranquios del Estrecho de Gibraltar y Bahía de Algeciras. Iberus 3: 41-46.
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, 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.
Hayward, P. J., G. D. Wigham, and N. Yonow. 1990. Mollusca I: Polyplacophora, Scaphopoda, and Gastropoda; pp. 628-730, In: , The marine fauna of the British Isles and north-west Europe, volume 2, xvi + 996 pp. Oxford University Press.
Høisæter, T. 1986. An annotated check-list of marine molluscs of the Norwegian coast and adjacent waters. Sarsia 71(2):73-175.
Just, H., and M. Edmuns. 1985. North atlantic nudibranchs (Mollusca) seen by Henning Lemche. Ophelia supplement 2: 1-150.
Lemche, H. M. 1976. New British species of Doto Oken, 1815 (Mollusca: Opisthobranchia). J. Mar. Biol. Assoc. U.K. 56(3):691-706, pls. 1-3.
Long, S. J. 2006. Bibliography of Opisthobranchia 1554-2000. Bayside Books & Press, Tustin, CA, U.S.A. 672p.
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).
McDonald, G. R., and J. W. Nybakken. 1999. A worldwide review of the food of nudibranch mollusks. II The suborder Dendronotacea. A list of the worldwide food habits of nudibranchs. The Veliger. 62–66.
Ortea, J. A. 1979. Nuevas especies de Nudibranquios del Norte de Espana. Fundacion Juan March, Serie Universitaria 86. Flora Y Fauna Acuaticas, p 25-31, 1 pl.
Ortea, J., and V. Urgorri. 1978. El género Doto Oken, 1815 en el Norte y Noroeste de Espana. Boletín de la Estación Central de Ecología ICONA 7 (14): 73-92.
Picton, B. E. 1978. A review of the genus Doto (Mollusca: Opisthobranchia) in the N. E. Atlantic and Mediterranean. Porcupine Newsletter 1(5):71-77.
Picton, B. 1981. Collections of nudibranch Mollusca from the Republic of Ireland made during 1981. Report to the Praeger Committee, Royal Irish Academy, Dublin, 5 unnumbered pp.
Picton, B. E., and G. H. Brown. 1981. Four Nudibranch Gastropods new to the fauna of Great Britain and Ireland including a description of a new species of Doto Oken. Irish Naturalist’s Journal 20(7): 261-268.
Picton, B. E., and C. Morrow.
1994. Doto dunnei accessed through: Nudibranchs of the British Isles on 2014-12-14. (
http://www.habitas.org.uk/marinelife/species.asp?item=W12770#).
Picton, B. E., and C. Morrow. 1994. A Field guide to the Nudibranchs of the British Isles. Immel Publishing Ltd. London: 143 pp., London.
Rudman W.B. et al. 1998. Doto dunnei accessed through: Sea Slug Forum on 2014-12-14. (
http://seaslugforum.net/showall/dotodunn).
Sabelli, B., R. Gianuzzi-Savelli, and D. Bedulli. 1990. Catalogo annotato dei Molluschi marini del Mediterraneo. Libreria Naturalistica Bolognese. Bologna, Italy: 348 pp.
Seaward, D. R. 1982. Sea area atlas of the marine molluscs of Britain and Ireland. Conchological Society of Great Britain & Ireland / Nature Conservancy Council, 242 pp.
Silva, J. P. 2008. Doto dunnei accessed through: Hypselodoris, Lesmas do Mar on 2014-12-21. (
http://hypselodoris.blogspot.pt/2012/05/doto-dunnei-lemche-1976.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.
Thompson, T. E. 1988. Molluscs: benthic opisthobranchs (Mollusca: Gastropoda) keys and notes for the identification of the species., 2nd ed, Synopses of the British fauna,. Brill, E. J. & Backhuys, W., Avon, Great Britain.
Thompson, T. E., and G. H. Brown. 1984. Biology of Opisthobranch Molluscs. Vol. 2. Ray Society, London 156, pp. 229:
Todd, C. D. 1981. The ecology of nudibranch molluscs. Oceanography & Marine Biology Annual Review 19:141-234.
Trainito, E., and M. Doneddu. 2014. Nudibranchi del Mediterraneo, 2nd. ed. Il Castello.
Turk, S. M., and D. R. Seaward. 1997. The marine fauna and flora of the Isles of Scilly - Mollusca. Journal of Natural History 31(4):555-633.
Urgorri, V. 1981. Opistobranquios de Galicia: Estudio faunístico y zoogeográfico. Tesis doctoral. Universidad de Santiago de Compostela, Santiago de Compostela, Spain.
Urgorri, V., and C. Besteiro. 1984. La alimentación de los Moluscos Nudibranquios de Galicia. Iberus 4: 51-58.
Urgorri, V., and C. Besteiro. 1983. Inventario de los moluscos Opistobranquios de Galicia. Investigación Pesquera 47 (1): 3-28.
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) "Doto dunnei" in OPK-Opistobranquis. Published: 01/05/2013. Accessed: 07/06/2023. Available at (https://opistobranquis.info/en/1Mzb4)
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