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1 September 2010 A new Styloptocuma species (Crustacea, Cumacea) from hydrothermal vent fields of the Lau and North Fiji basins (West Pacific)
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Abstract

Corbera J. & Segonzac M. 2010. — A new Styloptocuma species (Crustacea, Cumacea) from hydrothermal vent fields of the Lau and North Fiji basins (West Pacific). Zoosystema32 (3): 439-447.

A new species of Nannastacidae, Styloptocuma darwini n. sp., is described from three hydrothermal sites in the back-arc basins of the southwestern Pacific: White Lady (North Fiji Basin), Hine Hina and Tu'i Malila (Lau Basin). Styloptocuma darwini n. sp. resembles S. pleonserratum Mühlenhardt-Siegel, 2005, from the Angola Basin and S. spinosum Petrescu, 2006, from the southeastern Australian slope, but differs from both by having a serrate antennal notch margin and transverse rows of spines on pereonites. The new species is associated with hydrothermal vent assemblages known from the southwestern Pacific back-arc basins. Affiliation to known families tends to indicate that the modern vent cumacean fauna may have originated from the surrounding deep-sea environment but also from the shallow-water vents or cold seeps, which acted as refugia during past global anoxic events in the deep sea.

© Publications Scientifiques du Muséum national d'Histoire naturelle, Paris.
Jordi Corbera and Michel Segonzac "A new Styloptocuma species (Crustacea, Cumacea) from hydrothermal vent fields of the Lau and North Fiji basins (West Pacific)," Zoosystema 32(3), 439-447, (1 September 2010). https://doi.org/10.5252/z2010n3a5
Received: 30 September 2009; Accepted: 1 March 2010; Published: 1 September 2010
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