| Registro completo |
| Provedor de dados: |
OMA
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| País: |
Belgium
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| Título: |
The tantulocaridan life cycle: the circle closed?
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| Autores: |
Huys, R.
Boxshall, G.A.
Lincoln, R.J.
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| Data: |
1993
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| Ano: |
1993
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| Resumo: |
The discovery of a new stage in the life cycle of the Tantulocarida is reported. A sexual female, collected from a deep-sea harpacticoid copepod host, was removed from the trunk sac of the preceding tantulus larva. This female is a free-living and nonfeeding stage which presumably mates with the free-swimming adult male previously described. The female comprises a cephalothorax, probably incorporating 2 limbless thoracic somites, 2 free pedigerous trunk somites, and 3 limbless trunk somites. It also possesses paired antennules, the only well-defined cephalic appendages present at any stage in tantulocaridan life history. There is a median genital aperture, the copulatory pore, located ventrally on the cephalothorax at about the level of the incorporated first thoracic somite. This is interpreted as further evidence of a sister-group relationship between the Tantulocarida and the Thecostraca. The known life-cycle stages of the Tantulocarida are now interpreted as forming two cycles, one sexual, the other parthenogenetic.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7259
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| Fonte: |
%3Ci%3EJ.+Crust.+Biol.+13%283%29%3C%2Fi%3E%3A+432-442
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| Direitos: |
info:eu-repo/semantics/restrictedAccess
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