Abstract
Two new species of Pseudopaguristes, P. mclaughlinae and P. pachydactylus are described from the southwestern Pacific. Both species have tuberculate spines that cover the mesial faces of the dactyls of the chelipeds, a character shared with P. hians (Henderson, 1888) and P. asper Rahayu, 2005. Pseudopaguristes mclaughlinae n. sp. differs from the two previously mentioned species in having the long and slender pereopods and a tergal thickening of the left second to fourth pleonal somites accompanied by row of long, moderately dense, plumose setae in females. Pseudopaguristes pachydactylus n. sp. is characterized by the short dactyls of the triangularly-shaped chelipeds and the absence of a row of hooked spines on the distal margin of inferior lamella of the male first pleopod. Two other species also found in the region are P. monoporus (Morgan, 1987) and P. laurentae (Morgan & Forest, 1991). A key to the known Indo-Pacific species of the genus Pseudopaguristes is provided.References
Asakura, A. (2004) Pseudopaguristes shidarai, a new species of hermit crab (Crustacea: Decapoda: Diogenidae) from Japan, the fourth species of the genus. Proceedings of the Biological Society of Washington, 117(2), 153–168.
Asakura, A. & Kosuge, T. (2004) Pseudopaguristes bicolor, a new species of hermit crab (Crustacea: Decapoda: Diogenidae) from Japan, the third species of the genus. Proceedings of the Biological Society of Washington, 117(1), 57–67.
Asakura, A. & McLaughlin, P.A. (2003) A new species of Pseudopaguristes McLaughlin, 2002 (Crustacea: Decapoda: Diogenidae) from Japan. Proceedings of the Biological Society of Washington, 116(2), 453–463.
Grant, F.E. & McCulloch, A.R. (1906) On a collection of Crustacea from the Port Curtis district, Queensland. Proceedings of the Linnean Society of New South Wales, 1906, 1–53.
Henderson, J. R. (1888) Report on the Anomura collected by H.M.S. Challenger during the years 1873-76. Scientific Result of the Exploratory Voyage of HMS Challenger, (Zoology), 27, i–iv+ 1-221.
Jones, D. & Morgan, G. J. (1994) A Field Guide to Crustaceans of Australian Waters. Reed Books, Sydney.
Komai, T. (1999) Hermit Crabs of the Families Diogenidae and Paguridae (Crustacea: Decapoda: Anomura) Collected during the Shin’yo-maru Cruise to the Ogasawara Islands and Torishima Island, Oceanic Islands in Japan. Journal of the Natural History Museum and Institute Chiba, Special Issue no. 6, 1–66.
McCulloch, A. R. (1913) Studies in Australian Crustacea. No. 3. Records of the Australian Museum, 9, 321–353
McLaughlin, p. a. (2002a) Pseudopaguristes, a new and aberrant genus of hermit crabs (Anomura: Paguridea: Diogenidae). Micronesica, 34, 185–199.
McLaughlin, P.A. (2002b). A review of the hermit crab (Decapoda: Anomura: Paguridea) fauna of southern Thailand, with particular emphasis on the Andaman Sea, and descriptions of three new species. In: N. Bruce, M. Berggren & S. Bussawarit (eds.), Proceedings of the international workshop on the Crustacea in the Andaman Sea, Phuket Marine Biological Center 29 November–20 December, 1998. Phuket Marine Biological Center, Special Publication, 23, 385–460
McLaughlin p. a. (in press) Australian hermit crabs of the genera Paguristes Dana, Stratiotes Thomson, and Pseudopaguristes McLaughlin (Crustacea: Anomura: Paguroidea: Diogenidae). Records of the Western Australian Museum.
Morgan, G. J. (1987) A new and abberant species of Paguristes (Anomura: Diogenidae) from northern Australia. Record of the Western Australian Museum, 13 (3), 379–386.
Morgan, G.J. (1990) A collection of Thalassinidea, Anomura and Brachyura (Crustacea: Decapoda) from the Kimberley region on Northwestern Australia. Zoologische Verhandelingen, 265, 1–90.
Morgan, g. j. & Forest, j. (1991) Seven new species of hermit crabs from northern and western Australia (Decapoda, Anomura, Diogenidae). Bulletin du Muséum national d'Histoire naturelle, (4)A 12, 649–689.
Rahayu, d. l. (2005) Addition to the Indonesian fauna of the hermit crab genus Pseudopaguristes McLaughlin and a further division of the genus Paguristes Dana (Crustacea: Decapoda: Paguroidea: Diogenidae). Zootaxa, 831, 1–42.
Rahayu, D.L. (2007) The hermit crabs Paguristes Dana, 1851 sensu lato (Crustacea, Decapoda, Anomura, Diogenidae) from the western Indian Ocean. Zoosystema 29 (3), 515–534.
Rahayu, D. L. & T. Komai (2000) Shallow-water hermit crabs (Crustacea: Decapoda: Anomura: Diogenidae and Paguridae) of Phuket, Thailand. Phuket Marine Biological Center Research Bulletin 63, 21–40.