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Blanquer, A.; Uriz, M.J. (2008). 'A posteriori' searching for phenotypic characters to described new cryptic species of sponges revealed by molecular markers (Scopalina: Dictyonellidae). Invertebrate Systematics. 22(5): 489-502.
147496
Blanquer, A.; Uriz, M.J.
2008
'A posteriori' searching for phenotypic characters to described new cryptic species of sponges revealed by molecular markers (Scopalina: Dictyonellidae)
Invertebrate Systematics
22(5): 489-502
Publication
Available for editors  PDF available [request]
Cryptic speciation is repeatedly reported in sponge taxonomic studies. Most of the cryptic species, which were revealed by molecular markers, have never been formally described owing to the difficulty in finding diagnostic phenotypic characters. A previous molecular study revealed four genetically distinct species that had been misidentified as Scopalina lophyropoda Schmidt. One species was S. lophyropoda sensu stricto, whereas the other three were new species. Here, the three new species are formally described after careful searching for discriminatory phenotypic characters. The new species are Scopalina blanensis, sp. nov. from the north-western Mediterranean, S. ceutensis, sp. nov. from the Mediterranean coasts of Africa (Atlantic waters) and S. canariensis, sp. nov. from the Canary Islands, Atlantic Ocean. All of them are at first sight morphologically similar and inhabit shallow environments with resuspended sediment. However, a closer examination allowed us to find some differential features: e.g. the amount of spongin embedding the spicules, the degree of complexity of the skeletal tracts, the size and curvature of the styles, the growth habit and the colour tinge. Furthermore, an identification key to the Atlanto-Mediterranean Scopalina species is presented. The differences between the genera Scopalina, Ulosa and Dictyonella are also discussed.
Mediterranean
Systematics, Taxonomy
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Adriatic Sea for Scopalina lophyropoda Schmidt, 1862 
Alboran Sea for Scopalina ceutensis Blanquer & Uriz, 2008 
Alboran Sea for Scopalina lophyropoda Schmidt, 1862 
Azores Canaries Madeira for Scopalina canariensis Blanquer & Uriz, 2008 
Eastern Brazil for Scopalina ruetzleri (Wiedenmayer, 1977) 
Western Caribbean for Scopalina ruetzleri (Wiedenmayer, 1977) 
Western Mediterranean for Scopalina blanensis Blanquer & Uriz, 2008 
Western Mediterranean for Scopalina blanensis Blanquer & Uriz, 2008 
Western Mediterranean for Scopalina lophyropoda Schmidt, 1862 
Western Mediterranean for Scopalina lophyropoda Schmidt, 1862 
Holotype MNCN 1.01/366, locality Western Mediterranean, identified as Scopalina blanensis Blanquer & Uriz, 2008
Holotype MNCN 1.01/367, locality Alboran Sea, identified as Scopalina ceutensis Blanquer & Uriz, 2008
Holotype MNCN 1.01/368, locality Azores Canaries Madeira, identified as Scopalina canariensis Blanquer & Uriz, 2008


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