An annotated and updated checklist of the opisthobranchs (Mollusca: Gastropoda) from Spain and Portugal (including islands and archipelagos)
Cervera, J.L.; Calado, G.; Gavaia, C.; Malaquias, M.A.E.; Templado, J.; Ballesteros, M.; García-Gómez, J.C.; Megina, C. (2004). An annotated and updated checklist of the opisthobranchs (Mollusca: Gastropoda) from Spain and Portugal (including islands and archipelagos). Boletin del Instituto Español de Oceanografia, 20(1-4). Instituto Español de Oceanografía: Madrid. 122 pp.
Part of: Boletin del Instituto Español de Oceanografia. Instituto Español de Oceanografía: Madrid. ISSN 0074-0195; e-ISSN 2174-3371
The present publication is a new annotated and updated checklist of the opisthobranchs (Mollusca, Gastropoda) from the Spanish and Portuguese coasts, including their Atlantic archipelagos (Azores, Madeira, Selvagens and Canary Islands). The bathyal species recorded from the continental shelf of all these areas are also included. Incorporating a review of the literature, 523 species are included on the present checklist, 23 belonging to Architectibranchia, 111 to Cephalaspidea s. s., 14 to Anaspidea, 4 to Acochlidiomorpha, 37 to Thecosomata, 7 to Gymnosomata, 43 to Sacoglossa, 3 to Umbraculoidea, 16 to Pleurobranchoidea and 265 to Nudibranchia: 127 Doridoidea, 42 Dendronotoidea, 9 Arminoidea, and 87 Aeolidoidea. The records these species have been divided into 12 geographic sectors: 1) Spanish coast on the Bay of Biscay; 2) Galicia; 3) mainland coast of Portugal; 4) Andalusian Atlantic coast; 5) Straits of Gibraltar, including Ceuta (northern Africa); 6) Andalusian Mediterranean coast, including Alborán Island; 7) Spanish Levant, from Cape Gata to Catalonia; 8) Catalonia, including the Columbretes Islands; 9) Balearic Islands; 10) Canary and Selvagens Islands; 11) Madeira; and 12) the Azores. The biogeographical relationships among these selected areas are discussed in the present paper's Conclusions. Taxonomic comments about many of the taxa cited are also included. It is noteworthy that since 1975, a total of 117 specific taxa have been described as new to science in the studied area. Some of them are currently considered synonyms, and others are pending an adequate revision.
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