"Henderson Island, a raised on the , is of great importance as one of the few examples of a Pacific island with intact lowland forest. It is also of biogeographic interest as it is practically the final island in a series of island chains, along which the fauna of has colonized, reaching back to . New collections of the non-flying terrestrial arthropod fauna were made on Henderson Island in 1991. In excess of 100 taxa are now known. There is a rich fauna (especially s), with many apparently endemic, some 26 species of spider, and nine species of (including three endemic to Henderson or nearby ). In addition , , , , , and are represented. The majority of the fauna is derived from the west, as expected, though many taxa appear to be introduced, some of them from the neotropics (e.g. and perhaps Hoplophorella stilifer)."