First new Dodecaceria (Polychaeta: Cirratulidae) species from the SW Atlantic (38ºS - 57ºW, Argentina)
ABSTRACT Cirratulids are a difficult group because they have a few taxonomic characters and these are often misinterpreted. The genus Dodecaceria, in particular has been reviewed in several parts of the world but not in the southwestern Atlantic shore. The benthic surveys of organically enriched areas of Mar del Plata have shown the presence of several cirratulids species in relation to intermediate sewage-impacted areas. One of these cirratulids have been identified as a new species of Dodecaceria, characterized by a large number of pair of branchiae ranging 12 to 18, first pair arising between peristomium and first chaetiger and the second in the first chaetiger. Capillary chaetes are festooned in one side, spoon-like hooks of two types, one with smooth subdistal edges and the others not excavated; the pattern of capillaries and spoon-shaped hooks in neuropodium is unique. The species is described, including draws and electronic photographs.
| Main Authors: | , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Universidad de Valparaíso. Facultad de Ciencias del Mar
2009
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| Online Access: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572009000100012 |
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