Browsing by Author "Brito, Alberto"
Now showing 1 - 2 of 2
Results Per Page
Sort Options
- Diplecogaster tonstricula, a new species of cleaning clingfish (Teleostei: Gobiesocidae) from the Canary Islands and Senegal, eastern Atlantic Ocean, with a review of the Diplecogaster-ctenocrypta species-groupPublication . Fricke, Ronald; Wirtz, Peter; Brito, AlbertoThe Diplecogaster-ctenocrypta species-group is reviewed it comprises two species. The clingfish Diplecogaster ctenocrypta from the Canary Islands is redescribed. The new species Diplecogaster tonstricula, a facultative cleaner of other teleosts, is described on the basis of eight specimens and colour photos from Senegal and the Canary Islands, eastern Atlantic Ocean. The species is small, apparently not exceeding 23mm total length; it is characterised by having nine dorsal-fin rays, eight anal-fin rays, 24-25 pectoral-fin rays, 14-15 principal caudal-fin rays, 13-16 rakers on third gill arch, pelvic disc without lateral papillae in region A, disc region B with two rows of weak papillae, interorbital distance 4.1-4.6 in head length, distance between disc and anus 14-17% of SL, head and body with 10-13 narrow vertical brownish bars, cheek with a white ocellus surrounded by black, and with a small black spot in the middle. The new species is compared with other species of the genus; a key to the six known species of the eastern Atlantic, Mediterranean and Black Sea and South African genus Diplecogaster is presented. A checklist is provided for the species of Diplecogaster and their synonyms.
- Restructuring of the ‘Macaronesia’ biogeographic unit: a marine multi-taxon biogeographical approachPublication . Freitas, Rui; Romeiras, Maria; Silva, Luís; Cordeiro, Ricardo; Madeira, Patrícia; González, José Antonio; Wirtz, Peter; Falcón, Jesús M.; Brito, Alberto; Floeter, Sergio R.; Afonso, Pedro; Porteiro, Filipe; Viera-Rodríguez, María Ascensión; Neto, Ana Isabel; Haroun, Ricardo; Farminhão, João N. M.; Rebelo, Ana Cristina; Baptista, Lara; Melo, Carlos S.; Martínez, Alejandro; Núñez, Jorge; Berning, Björn; Johnson, Markes E.; Ávila, Sérgio P.The Azores, Madeira, Selvagens, Canary Islands and Cabo Verde are commonly united under the term "Macaronesia". This study investigates the coherency and validity of Macaronesia as a biogeographic unit using six marine groups with very different dispersal abilities: coastal fishes, echinoderms, gastropod molluscs, brachyuran decapod crustaceans, polychaete annelids, and macroalgae. We found no support for the current concept of Macaronesia as a coherent marine biogeographic unit. All marine groups studied suggest the exclusion of Cabo Verde from the remaining Macaronesian archipelagos and thus, Cabo Verde should be given the status of a biogeographic subprovince within the West African Transition province. We propose to redefine the Lusitanian biogeographical province, in which we include four ecoregions: the South European Atlantic Shelf, the Saharan Upwelling, the Azores, and a new ecoregion herein named Webbnesia, which comprises the archipelagos of Madeira, Selvagens and the Canary Islands.