Two new species of Halmaheramys (Murinae: Rattini) from archaeological deposits on Morotai Island, North Moluccas, Indonesia

Two new species of murine rodents (Halmaheramys funderus sp. nov. and H. bellwoodi sp. nov.) are described from remains in an archaeological site on Morotai Island in North Maluku (Maluku Utara) Province of Indonesia. Both species are approximately the same size, (about the size of a Norway or brown...

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Main Authors: Kenneth P. Aplin, Tim F. Flannery, Boeadi, Pierre-Henri Fabre, Kristofer M. Helgen
Format: Article
Language:English
Published: Australian Museum 2023-12-01
Series:Records of the Australian Museum
Subjects:
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author Kenneth P. Aplin
Tim F. Flannery
Boeadi
Pierre-Henri Fabre
Kristofer M. Helgen
author_facet Kenneth P. Aplin
Tim F. Flannery
Boeadi
Pierre-Henri Fabre
Kristofer M. Helgen
author_sort Kenneth P. Aplin
collection DOAJ
description Two new species of murine rodents (Halmaheramys funderus sp. nov. and H. bellwoodi sp. nov.) are described from remains in an archaeological site on Morotai Island in North Maluku (Maluku Utara) Province of Indonesia. Both species are approximately the same size, (about the size of a Norway or brown rat, Rattus norvegicus) but they differ from each other in the degree of elongation of the snout and in molar size relative to osseous structures. These morphological contrasts are suggestive of dietary differences. Both species survived into the Holocene, and because the modern mammal fauna of Morotai is very little studied, it is possible that these species may still be extant on the island. Recognition of these taxa helps to demonstrate the distinctive nature of the Morotai murine fauna, which has unique species of Rattus and Halmaheramys compared to Halmahera-Bacan on one hand, and to Obi-Bisa on the other. The subfossil record (and modern fauna) of Morotai also lacks other Australo-Papuan genera that characterize other North Moluccan islands, such as Hydromys and Uromys (known from Obi) and Melomys (known from Halmahera and Obi-Bisa). Aplin, Kenneth P., Tim F. Flannery, Boeadi, Pierre-Henri Fabre, and Kristofer M. Helgen. 2023. Two new species of Halmaheramys (Murinae: Rattini) from archaeological deposits on Morotai Island, North Moluccas, Indonesia. In Contributions to Mammalogy and Zooarchaeology of Wallacea, ed. K. M. Helgen and R. K. Jones. Records of the Australian Museum 75(5): 719–739.
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spelling doaj.art-48d31cc80a9d4baab861bb8435fc55812023-12-13T04:04:13ZengAustralian MuseumRecords of the Australian Museum0067-19752201-43492023-12-0175571973910.3853/j.2201-4349.75.2023.1785Two new species of Halmaheramys (Murinae: Rattini) from archaeological deposits on Morotai Island, North Moluccas, IndonesiaKenneth P. Aplinhttps://orcid.org/0000-0003-0403-8690Tim F. Flannery0https://orcid.org/0000-0002-3005-8305Boeadi1Pierre-Henri Fabre2https://orcid.org/0000-0002-3414-5625Kristofer M. Helgen3https://orcid.org/0000-0002-8776-4040Australian Museum Research InstituteMuseum Zoologicum BogorienseUniversité de MontpellierAustralian Museum Research InstituteTwo new species of murine rodents (Halmaheramys funderus sp. nov. and H. bellwoodi sp. nov.) are described from remains in an archaeological site on Morotai Island in North Maluku (Maluku Utara) Province of Indonesia. Both species are approximately the same size, (about the size of a Norway or brown rat, Rattus norvegicus) but they differ from each other in the degree of elongation of the snout and in molar size relative to osseous structures. These morphological contrasts are suggestive of dietary differences. Both species survived into the Holocene, and because the modern mammal fauna of Morotai is very little studied, it is possible that these species may still be extant on the island. Recognition of these taxa helps to demonstrate the distinctive nature of the Morotai murine fauna, which has unique species of Rattus and Halmaheramys compared to Halmahera-Bacan on one hand, and to Obi-Bisa on the other. The subfossil record (and modern fauna) of Morotai also lacks other Australo-Papuan genera that characterize other North Moluccan islands, such as Hydromys and Uromys (known from Obi) and Melomys (known from Halmahera and Obi-Bisa). Aplin, Kenneth P., Tim F. Flannery, Boeadi, Pierre-Henri Fabre, and Kristofer M. Helgen. 2023. Two new species of Halmaheramys (Murinae: Rattini) from archaeological deposits on Morotai Island, North Moluccas, Indonesia. In Contributions to Mammalogy and Zooarchaeology of Wallacea, ed. K. M. Helgen and R. K. Jones. Records of the Australian Museum 75(5): 719–739. biogeographyrattusrodentstaxonomywallacea
spellingShingle Kenneth P. Aplin
Tim F. Flannery
Boeadi
Pierre-Henri Fabre
Kristofer M. Helgen
Two new species of Halmaheramys (Murinae: Rattini) from archaeological deposits on Morotai Island, North Moluccas, Indonesia
Records of the Australian Museum
biogeography
rattus
rodents
taxonomy
wallacea
title Two new species of Halmaheramys (Murinae: Rattini) from archaeological deposits on Morotai Island, North Moluccas, Indonesia
title_full Two new species of Halmaheramys (Murinae: Rattini) from archaeological deposits on Morotai Island, North Moluccas, Indonesia
title_fullStr Two new species of Halmaheramys (Murinae: Rattini) from archaeological deposits on Morotai Island, North Moluccas, Indonesia
title_full_unstemmed Two new species of Halmaheramys (Murinae: Rattini) from archaeological deposits on Morotai Island, North Moluccas, Indonesia
title_short Two new species of Halmaheramys (Murinae: Rattini) from archaeological deposits on Morotai Island, North Moluccas, Indonesia
title_sort two new species of halmaheramys murinae rattini from archaeological deposits on morotai island north moluccas indonesia
topic biogeography
rattus
rodents
taxonomy
wallacea
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