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MarBEF Data System |
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ERMS taxon details
original description
Kelaart E.F. (1858). Description of new and little known species of Ceylon nudibranchiate molluscs, and zoophytes. <em>Journal of the Ceylon Branch of the Royal Asiatic Society.</em> 3 (9): 84-139. [May 1858]., available online at https://biodiversitylibrary.org/page/43940429
page(s): 107 [details] 
context source (Introduced species)
Katsanevakis, S.; Bogucarskis, K.; Gatto, F.; Vandekerkhove, J.; Deriu, I.; Cardoso A.S. (2012). Building the European Alien Species Information Network (EASIN): a novel approach for the exploration of distributed alien species data. <em>BioInvasions Records.</em> 1: 235-245., available online at http://easin.jrc.ec.europa.eu [details] Available for editors 
additional source
Zenetos, A.; Çinar, M.E.; Pancucci-Papadopoulou, M.A.; Harmelin, J.-G.; Furnari, G.; Andaloro, F.; Bellou, N.; Streftaris, N.; Zibrowius, H. (2005). Annotated list of marine alien species in the Mediterranean with records of the worst invasive species. <em>Mediterranean Marine Science.</em> 6 (2): 63-118., available online at https://www.researchgate.net/publication/273213810_Annotated_list_of_marine_alien_species_in_the_Mediterranean_with_records_of_the_worst_invasive_species [details] Available for editors
additional source
Jensen, K.R. (2007). Biogeography of the Sacoglossa (Mollusca, Opisthobranchia). <em>Bonner Zoologische Beiträge.</em> 55: 255–281. [details]
additional source
Zenetos, A.; Gofas, S.; Verlaque, M.; Cinar, M.; Garcia Raso, J.; Bianchi, C.; Morri, C.; Azzurro, E.; Bilecenoglu, M.; Froglia, C.; Siokou, I.; Violanti, D.; Sfriso, A.; San Martin, G.; Giangrande, A.; Katagan, T.; Ballesteros, E.; Ramos-Espla, A.; Mastrototaro, F.; Ocana, O.; Zingone, A.; Gambi, M.; Streftaris, N. (2010). Alien species in the Mediterranean Sea by 2010. A contribution to the application of European Union's Marine Strategy Framework Directive (MSFD). Part I. Spatial distribution. <em>Mediterranean Marine Science.</em> 11(2): 381-493., available online at https://doi.org/10.12681/mms.87 [details]
source of synonymy
Jensen K. (2015). Sacoglossa (Mollusca: Gastropoda: Heterobranchia) from northern coasts of Singapore. <em>Raffles Bulletin of Zoology.</em> suppl. 31: 226-249. [details]
status source
Krug P.J., Vendetti J.E. & Valdés Á. (2016). Molecular and morphological systematics of <i>Elysia</i> Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region. <em>Zootaxa.</em> 4148(1): 1-137., available online at https://doi.org/10.11646/zootaxa.4148.1.1
page(s): 22 [details]
From editor or global species database
Taxonomy Large species of Elysia feeding on Bryopsis spp. were described from the tropical Pacific and placed in the synonymy of Elysia ornata (Swainson, 1840) by Jensen (1992). Both have a black band along the parapodial edge and a submarginal orange band similar to those of E. ornata. The first species, E. grandifolia (Kelaart, 1858), was described from Sri Lanka as having black and gold marginal lines along parapodia that fused with the tail (Kelaart 1858). The second species, E. marginata (Pease, 1871) was originally described from the Hawaiian Islands and subsequently from Tahiti as having a white band between the orange and black marginal bands (Pease 1871). Authorities subsequently debated whether E.grandifolia had denticulate teeth (Eliot 1904, 1908; O’Donoghue 1932). Both E. marginata and E. grandifolia were synonymized with E. ornata based on morphological comparisons between Pacific and Caribbean material (Ev. Marcus 1980; Heller & Thompson 1983; Jensen 1992).
Recent integrative taxonomic work revealed that the E. marginata-grandifolia complex contained four candidate species in Pacific, all distinct from each other and from E. ornata by (1) molecular sequence analyses of two genetic loci; (2) external features including color of rhinophores and marginal bands, folding of parapodia into siphonal openings, tail shape, and pattern of dorsal vessels; and (3) color and pattern of ECY (Krug et al. 2013). Elysia ornata is therefore restricted to the Caribbean, and some related Pacific species await formal description.
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