A new genus and two new species of Pennellidae (Copepoda: Siphonostomatoida) and an analysis of evolution within the family |
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| Authors: | Geoffrey A. Boxshall |
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| Affiliation: | (1) Department of Zoology, British Museum (Natural History), Cromwell Road, SW7 5BD London, U.K. |
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| Abstract: | Summary A new pennellid genus,Exopenna, is established on the basis of two specimens of a new species,E. crimmeni, recovered from a deep-sea cod,Antimora, caught in the North East Atlantic. It is ectoparasitic and is diagnosed by the combination of a straight body, tightly coiled egg sacs and flattened, plate-like antennary processes. Another new species,Peniculus elongatus, is described from Australian waters and new records ofP. fistula andLernaeenicus ramosus further increase the known pennellid fauna of that region. A preliminary analysis of the phylogenetic relationships of the pennellid genera is undertaken and a partially resolved cladogram produced which identifies the main generic groupings. ac]19850522 |
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