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Cytological evidence for cryptic speciation in Mediterranean Oscarella species (Porifera, Homoscleromorpha)
Muricy, G.; Boury-Esnault, N.; Bézac, C.; Vacelet, J. (1996). Cytological evidence for cryptic speciation in Mediterranean Oscarella species (Porifera, Homoscleromorpha). Can. J. Zool. 74(5): 881-896. https://dx.doi.org/10.1139/z96-102
In: Canadian Journal of Zoology = Revue canadienne de zoologie. National Research Council: Ottawa. ISSN 0008-4301; e-ISSN 1480-3283, more
Peer reviewed article  

Available in  Authors | Dataset 

Keywords
    Oscarella Vosmaer, 1884 [WoRMS]
    Marine/Coastal

Authors  Top | Dataset 
  • Muricy, G.
  • Boury-Esnault, N., more
  • Bézac, C.
  • Vacelet, J., more

Abstract
    Three new sponge species without a skeleton, Oscarella viridis, O. microlobata, and O. imperialis, were found in sublittoral caves and on vertical walls along the coast of Provence (western Mediterranean Sea, France). Their morphology, anatomy, and cytology are described and they are compared with the two other valid Mediterranean Oscarella species, O. lobularis and O. tuberculata. Reproductive and internal anatomical characters are uniform in the genus, but details of external morphology and especially cytological characters (mesohylar cells with inclusions) provide good diagnostic features at the species level. Careful observation of morphological and cytological characters is essential for clarifying the systematics of Oscarella and reveals an unexpected biodiversity of this genus in the Mediterranean Sea.

Dataset
  • Linares, Cristina; Figuerola, Laura; Gómez-Gras, Daniel; Pagès-Escolà, Marta; Olvera, Àngela, Aubach, Àlex; Amate, Roger; Figuerola, Blanca; Kersting, Diego; Ledoux, Jean-Baptiste; López-Sanz, Àngel; López-Sendino, Paula; Medrano, Alba; Garrabou, Joaquim; (2020); CorMedNet- Distribution and demographic data of habitat-forming invertebrate species from Mediterranean coralligenous assemblages between 1882 and 2019, more

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