Geograpsus severnsi Paulay & Starmer, 2011
Severns' terrestrial crab
Taxonomy & Nomenclature
Allied to Geograpsus grayi (Paulay & Starmer 2011).
Last record: 300 AD or later
The finding of sub-fossil remains of a terrestrial species of crab was a major find. Previously it was believed that no fully terrestrial decapod had colonized the islands. However, the species did not just colonize the islands, but at least several of them as sub-fossil remains have been found on Maui, Kauai, Molokai, Oahu, and Hawaii itself (Paulay & Starmer 2011, see Table 2).
Hawaiian Islands, USA
Biology & Ecology
Holotype: USNM 539,738
Type locality: "Maui: Pu'u Naio Cave, 305 m elevation"
Paratypes (all from Maui):
UF IP 168,821
UF IP 168,822
UF IP 168,823
UF IP 168,827
UF IP 168,824
UF IP 168,825
UF IP 168,826
Above: the holotype of Geograpsus severnsi. Source: Paulay & Starmer, 2011. Reproduced under CC BY 2.5 licence.
Original scientific description:
Paulay, G. and Starmer, J. (2011). Evolution, Insular Restriction, and Extinction of Oceanic Land Crabs, Exemplified by the Loss of an Endemic Geograpsus in the Hawaiian Islands. PLoS ONE 6(5): e19916.
Giffin, Jon G. (2003). Pu’u Wa’awa’a Biological Assessment. Pu’u Wa’awa’a, North Kona, Hawaii. Report, State of Hawaii, Department of Natural Resources, Division of Forestry and Wildlife.