Abstract
Two new species of gecarcinucid crabs of the genus Holthuisana Bott, 1969, are described from the islands of Waigeo and Batanta in West Papua Province, Indonesia. Holthuisana lipkei n. sp. differs from the allied H. alba Holthuis, 1980, from Papua New Guinea by having fully developed pigmented eyes, smooth carapace, smooth and distinctly gaping second major chela, and the relatively more slender male first gonopod. Holthuisana tikus n. sp. resembles H. subconvexa (Roux, 1927) from Papua Province but differs by possessing indistinct and shallow epigastric lobes on the carapace, the absence of a subdistal tooth on the upper margin of the ambulatory merus of pereiopods 2-5 and a relatively stouter male first gonopod. The taxonomic status of Holthuisana and its constituent species is also discussed.References
Alcock, A. (1910) On the classification of the Potamonidae (Telphusidae). Records of the Indian Museum, 5, 252–261.
Bott, R. (1969) Flüsskrabben aus Asien und ihre Klassifikation (Crustacea, Decapoda). Senckenbergiana Biologica, 50 (5/6), 359–366.
Bott, R. (1970) Die Süsswasserkrabben von Europa, Asien, Australien und ihre Stammesgeschichte. Eine Revision der Potamoidea und der Parathelphusoidea (Crustacea, Decapoda). Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft, 526, 1–338, 1 map, text-figs. 1–8, pls. 1–58.
Bott, R. (1974) Die Süsswasserkrabben von Neu Guinea. Zoologische Verhandelingen, 136, 1–36, pls. 1–4.
Calman, W.T. (1914) Report on the river crabs (potamonid) collected by the British Ornithologists' Union Expedition to Dutch New Guinea. Transactions of the Zoological Society, London, 20, 307–330.
Davie, P.J.F. (2002) Crustacea: Malacostraca. Eucarida (Part 2). Decapoda – Anomura, Brachyura: Zoological Catalogue of Australia. 19.3B. CSIRO Publications, pp. 1–641.
Holthuis, L.B. (1980) A new cavernicolous freshwater crab from New Guinea (Crustacea Decapoda). Zoologische Mededelingen, 55 (27), 313–320.
Klaus, S., Brandis, D., Ng, P.K.L., Yeo, D.C.J. & Schubart, C.D. (in press) Phylogeny and Biogeography of Asian Freshwater Crabs of the family Gecarcinucidae (Brachyura: Potamoidea). In: Martin, J.W, Crandall, K.A. & Felder, D. (Eds.), Advances in Decapod Crustacean Phylogenetics, Crustacean Issues, Balkema.
Martens, E., von (1868) Ueber einige neue Crustaceen. Monatsberichte k.-p. Akademie Wissenschaften Berlin, 1868, 608–615.
Ng, P.K.L. & Guinot, D. (1998) Geelvinkia darnei, a new species of cavernicolous crab (Crustacea, Decapoda, Brachyura, Parathelphusidae) from Irian Jaya, Indonesia. Mémoires de Biospéleologie, 24, 181–182, figs. 1–3.
Ng, P.K.L., Guinot, D. & Davie, P.J.F. (2008) Systema Brachyurorum: Part I. An annotated checklist of extant brachyuran crabs of the world. Raffles Bulletin of Zoology, Supplement 17, 1–286.
Ng, P.K.L. & Sket, B. (1996) The freshwater crab fauna (Crustacea: Brachyura) of the Philippines. IV. On a collection of Parathelphusidae from Bohol. Proceedings of the Biological Society of Washington, 109 (4), 695–706.
Nobili, G. (1899) Contribuzioni alla conoscenza della fauna carcinologica della Papuasia, delle Molucche e dell’Australia. Annali del Museo Civico di Storia Naturale "G. Doria", 40, 230–282.
Nobili, G. (1905) Decapodi e Isopodi della Nuova Guinea Tedesca raccolti dal Sign. L. Biró. Annales Musei Nationalis Hungarici, 3, 480–507, pls. 12, 13.
Rathbun, M.J. (1904) Les crabes d'eau douce. Nouvelles Archives du Muséum d'Histoire naturelle, Paris, (4) 6, 225–312, pls. 9–18.
Rathbun, M.J. (1926) Brachyuran crabs from Australia and New Guinea. Records of the Australian Museum, 15 (2), 177–182, pls. 14, 15.
Roux, J. (1911) Nouvelles espèces de Décapodes d'eau douce provenant de Papouasie. Notes Leyden Museum, 33, 81–106.
Roux, J. (1927) Contribution a la faune carcinologique d'eau douce de la Nouvelle-Guinee. Nova Guinea, 15, 319–350, pls. 3, 4.
Wowor, D. & Ng, P.K.L. (2009) Two new species of sesarmid crabs (Crustacea: Decapoda: Brachyura) associated with limestone formations from West Papua, Indonesia. Zootaxa, 2025, 21–31.