Forest, J.; de S. Laurent, M.; McLaughlin, P.A.; Lemaitre, R. 2000. The marine fauna of New Zealand: Paguridea (Decapoda: Anomura) exclusive of the Lithodidae. Wellington, NZ: NIWA (National Institute of Water and Atmospheric Research). NIWA Biodiversity Memoir 114, 250 p.
Abstract
A total of 18 genera and 52 species of hermit crabs are now recognised in the New Zealand fauna. The majority are found in the waters around the mainland, while five genera and 14 species appear only in the Kermadec Island fauna. 3oth anomuran superfamilies, the Coenobitoidea and Paguroidea, are represented in New Zealand waters, with only che semiterrestrial family Coenobitidae not reported. The Coenobitoidea includes two families and 18 species. The Pylochelidae comprises four species of the genus Trizocheles including one new species described herein, and one each of the genera Pyloclreles and Cheiroplatea. The quite recent recognition of members of this family in the New Zealand fauna undoubtedly reflects the poorly sampled specialised habitats of these hermit crabs (e.g., petricolous, spongicolous, etc .. shelters) rather than recent introductions. The family Diogenidae is represented by four genera and 11 species, four of which are common fauna( representatives; however, it is only now that their specific identities can be defined with certainty. A Japanese taxon, for many years :.ncorrectly identified as Paguristes setosus H. Milne Edwards, was found not to be conspecific with the New Zealand species of the same name, and was redescribed as Paguristes miyakei Forest & McLaughlin. All four New Zealand species of Paguristes are endemic whereas Dardanus arrosor (Herbst) has an extremely broad geographical distribution, New Zealand representing the maximum extension of the range of this species. A second species, Dardanus hessii (Miers) is found in the Kermadec Islands. The cryptic genus Cancellus is represented by two new species from the New Zealand mainland region, and two from the Kermadec Islands. The remaining genus, Calcinus with one species, is known only from the Kermadec Islands. The paguroid fauna, at least the family Paguridae, is considerably more species-rich than the coenobitoid. In addition to the 13 species reported in the two subgenera of Lophopagurus, including one new species, five species of Pagurus are documented, of which P. sinuatus Henderson and one new species are restricted to the Kermadec Islands, while a second new species and two well-known species make up the mainland fauna; three species are recorded in the genus Diacanthurus. The genus Porcellanopagurus is represented in mainland waters by P. edwardsi Filhol and a new species, previously confounded with it, while P. tridentatus Whitelegge and a new species are reported from the Kermadec Islands. Included in the deep-water fauna are Pagurodes inarmatus Henderson, Propagurus deprofimdis (Stebbing), and a species questionably assigned to Michelopagurus. In addition to Bathypaguropsis yaldwym McLaughlin, a new species is described, and the genus Pagurojacquesia (nom. nov. pro Jacqucsia) is recognised from the Kermadec Islands (auths)