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Benthic hydroids (Cnidaria: Hydrozoa) from the Spanish Antarctic expedition Bentart 95

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Abstract

A total of 61 species of hydroids, belonging to 13 families and 23 genera, were found during the Spanish Antarctic expedition Bentart 95 with the RV Hespérides. Ten of the species were identified only to generic level. The dominance of the subclass Leptothecatae, with 57 species, was remarkable. The remaining four species belong to the subclass Anthoathecatae. By far the most diverse family was the Sertulariidae, with 25 species (41%), followed by Haleciidae with nine species (15%) and Kirchenpaueriidae with six (10%). The family Plumulariidae, represented by one species of Nemertesia, is recorded for the first time from Antarctic waters. Eudendrium scotti, Perarella clavata and Symplectoscyphus hero are each recorded for the second time. Symplectoscyphus with 11 species was the dominant genus. Almost 60% of the species diversity is concentrated in just a little more than the 20% of genera. Nearly 70% of the species are endemic to Antarctic waters and 90% of them are restricted to Antarctic or Antarctic/sub-Antarctic waters.

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Acknowledgments

The “Bentart95” survey was funded by the Comisión Interministerial de Ciencia y Tecnología (CICYT) of the Spanish government (Ref. ANT94-1161/E).

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  1. Instituto Cavanilles de Biodiversidad y Biología Evolutiva, Universidad de Valencia/Fundación General Universidad de Valencia, Apdo. Correos 22085, 46071, Valencia, Spain

    Alvaro L. Peña Cantero

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Correspondence to Alvaro L. Peña Cantero.

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Peña Cantero, A.L. Benthic hydroids (Cnidaria: Hydrozoa) from the Spanish Antarctic expedition Bentart 95. Polar Biol 31, 451–464 (2008). https://doi.org/10.1007/s00300-007-0371-2

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  • DOI: https://doi.org/10.1007/s00300-007-0371-2

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