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A review of Paranannopidae (Copepoda: Harpacticoida) with claviform aesthetascs on oral appendages
In: Journal of Natural History. Taylor & Francis: London. ISSN 0022-2933; e-ISSN 1464-5262
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| Trefwoord |
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| Author keywords |
Copepoda, Harpacticoida, Paranannopidae, Leptotachidia , Paradanielssenia , Micropsammis , Telopsammis , mouthparts, aesthetascs |
| Abstract |
Leptotachidia iberica Becker is completely redescribed from the type material and is shown to carry claviform aesthetascs on the mouthparts. This is regarded as a character of high phylogenetic significance and, together with the loss of the mandibular exopod and the form of sexual dimorphism of the distal segment of the male P2 endopod, provides overwhelming evidence for a common ancestry for the genera Leptotachidia, Micropsammis Mielke and Paradanielssenia Soyer. Additional observations are made of the morphology of M. noodti Mielke, M. secunda Mielke and P. biclavata Gee. From a discussion of the probable relationships within this group of genera it is concluded that M. secunda is the most likely sister group of Leptotachidia and therefore must be removed to a new genus Telopsammis gen. nov. New diagnoses are given for all the genera. |
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