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

2005; Muséum national d'histoire naturelle; Volume: 27; Issue: 4 Linguagem: Inglês

1638-9387

Enrique Macpherson, William J. Jones, Michel Segonzac,

Coral and Marine Ecosystems Studies

A new monotypic family, Kiwaidae n. fam., is proposed for Kiwa hirsut a n. gen., n. s p . , new genus and new species collected in hydrothermal vents of the Pacific-Antarctic Ridge, south of Easter Island. The new family belongs t o the superfamily Galatheoidea, having similarities with the famil y Chirostylidae, but with distinctive characters including carapace shape and ornamentation, insertion of fifth pereopod not visible and situated belo w sternal plastron, sternite between third maxillipeds large and strongly produced anteriorly; eyes strongly reduced, antennal scale absent and cheliped s and walking legs with dense mat of setae. Molecular data (18S rRNA) gene confirm the clear difference between anomuran families, placing the new tax a closer to the families Chirostylidae, Galatheidae and Porcellanidae than t o Aeglidae. Crustacea, Decapoda, Anomura, Galatheoidea, Kiwaidae n. fam., Kiwa n. gen. , hydrothermal vents, Pacific-Antarctic Ridge, new family, new genus, new species.