A new squat lobster family of Galatheoidea (Crustacea, Decapoda: Anomura) from the hydrothermal vents of the Pacific-Antarctic Ridge

15 páginas, 9 figuras. [EN]A new monotypic family, Kiwaidae n. fam., is proposed for Kiwa hirsuta n. gen., n. sp., new genus and new species collected in hydrothermal vents of the Pacific-Antarctic Ridge, south of Easter Island. The new family belongs to the superfamily Galatheoidea, having similari...

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Bibliographic Details
Main Authors: Macpherson, Enrique, Jones, W., Segonzac, Michel
Format: Article in Journal/Newspaper
Language:English
Published: Muséum national d'Histoire naturelle (France) 2005
Subjects:
Online Access:http://hdl.handle.net/10261/42060
Description
Summary:15 páginas, 9 figuras. [EN]A new monotypic family, Kiwaidae n. fam., is proposed for Kiwa hirsuta n. gen., n. sp., new genus and new species collected in hydrothermal vents of the Pacific-Antarctic Ridge, south of Easter Island. The new family belongs to the superfamily Galatheoidea, having similarities with the family Chirostylidae, but with distinctive characters including carapace shape and ornamentation, insertion of fifth pereopod not visible and situated below sternal plastron, sternite between third maxillipeds large and strongly produced anteriorly; eyes strongly reduced, antennal scale absent and chelipeds and walking legs with dense mat of setae. Molecular data (18S rRNA) gene confirm the clear difference between anomuran families, placing the new taxa closer to the families Chirostylidae, Galatheidae and Porcellanidae than to Aeglidae. [FR]Une nouvelle famille de Galatheoidea (Crustacea, Decapoda, Anomura) des sources hydrothermales de la dorsale Pacifique-Antarctique. Une nouvelle famille monotypique, Kiwaidae n. fam., est proposée pour Kiwa hirsuta n. gen., n. sp., récolté sur les sites hydrothermaux de la dorsale Pacifique-Antarctique, au sud de l’Île de Pâques. La nouvelle famille appartient à la superfamille Galatheoidea et présente des similitudes avec la famille des Chirostylidae, mais s’en distingue nettement par la forme et l’ornementation de la carapace, la base des cinquièmes péréiopodes, située sous le plastron sternal, et non visible ventralement, le sternite situé entre les troisièmes maxillipèdes, de grande taille et fortement prolongé antérieurement, les yeux réduits, l’écaille antennaire absente, et la dense couverture de soies. Les données moléculaires (rRNA 18S) confirment la nette différence entre les familles d’anomoures, plaçant le nouveau taxon plus près des Chirostylidae, Galatheidae et Porcellanidae que des Aeglidae. The cruise PAR 5 was funded by grants from the US National Science Foundation to R. C. Vrijenhoek (OCE-0241613) and to C. L. Van Dover (OCE-0350554). Peer ...