Description of Genesis vulcanoctopusi gen. et sp. nov. (Copepoda: Tisbidae) parasitic on a hydrothermal vent octopod and a reinterpretation of the life cycle of cholidyinid harpacticoids
López-González, P.J.; Bresciani, J.; Huys, R.; González, Á.F.; Guerra, Á.; Pascual, S. (2000). Description of Genesis vulcanoctopusi gen. et sp. nov. (Copepoda: Tisbidae) parasitic on a hydrothermal vent octopod and a reinterpretation of the life cycle of cholidyinid harpacticoids. Cah. Biol. Mar. 41(3): 241-253
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723; e-ISSN 2262-3094, more
Juveniles and adult females of Genesis vulcanoctopusi gen. et sp. nov. (Copepoda: Harpacticoida) are described from the deepwater octopus Vulcanoctopus hydrothermalis, collected from a hydrothermal vent in the East Pacific Rise. The new genus is placed in the Tisbidae and is readily distinguishable from other Cholidyinae by the combination of body shape, structure of oral appendages and segmentation of legs 1-5. All stages were found embedded in the integument of the head and mantle of the cephalopod host, suggesting an endoparasitic copepodid phase. The generalized life cycle of cholidyinid harpacticoids is reinterpreted in the light of this discovery. Aspects of parasitism and pathological effects of G. Vulcanoctopusi on the octopod host are discussed.
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