Hypsiscopus matannensis (BOULENGER, 1897)

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Higher Taxa	Homalopsidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
Common Names	E: Boulenger's Water Snake
Synonym	Hypsirhina matannensis BOULENGER 1897: 225 Enhydris matannensis — DE LANG & VOGEL 2005 Enhydris matannensis — ISKANDAR & ERDELEN 2006 Enhydris matannensis — MURPHY 2007: 142 Enhydris matannensis — KOCH 2012 Enhydris matannensis — WALLACH et al. 2014: 124 Hypsiscopus matannensis — MURPHY & VORIS 2014: 26
Distribution	Indonesia (SE Sulawesi) Type locality: Lake Matanna, South-eastern Celebes
Reproduction	ovovivparous
Types	Holotype: NMBA 1735, a 240 mm male (P. Sarasin and F. Sarasin, 1893-1896).
Diagnosis	DIAGNOSIS: Scale at mid-body in 21 rows; single postocular; and divided internasal separate it from its congener, H. plumbea (n = 1; Murphy & Voris 2014: 26)
Comment	Distribution: see Bernstein et al. 2022: 562 (Fig. 1) for a map. Similar species: Hypsiscopus plumbea
Etymology	Named after the type locality.
References	Bernstein, J. M., Voris, H. K., Stuart, B. L., Phimmachak, S., Seateun, S., Sivongxay, N., ... & Ruane, S. 2022. Undescribed Diversity in a Widespread, Common Group of Asian Mud Snakes (Serpentes: Homalopsidae: Hypsiscopus). Ichthyology & Herpetology, 110(3), 561-574 - get paper here Boulenger, G.A. 1897. A catalogue of the reptiles and batrachians of Celebes with special reference to the collections made by Drs P & F Sarasin in 1893-1896. Proc. Zool. Soc. London 1897: 193-237 [p228-237: batrachia] - get paper here Hamidy, A., Zakky, Q., Fitriyana, N., & Endarwin, W. 2023. A NEW SPECIES OF WATER SNAKE GENUS HYPSISCOPUS (SERPENTES: HOMALOPSIDAE) FROM SULAWESI, INDONESIA. TREUBIA 50(1): 21-38 - get paper here Healey RM, Atutubo JR, Kusrini MD, et al. 2020. Road mortality threatens endemic species in a national park in Sulawesi, Indonesia. Glob Ecol Conserv. 2020: e01281 - get paper here Iskandar, D.T. 1979. A second specimen of the Matanna water snake, Enhydris matannensis (Blgr.), from Raha, Muna Island, Indonesia. British Journal of Herpetology 5 (12): 849-850. Iskandar, Djoko T. and Walter R. Erdelen 2006. Conservation of amphibians and reptiles in Indonesia: issues and problems. Amphibian & Reptile Conservation 4 (1): 60-87 - get paper here Koch, A. 2012. Discovery, Diversity, and Distribution of the Amphibians and Reptiles of Sulawesi and its offshore islands. Edition Chimaira, 374 pp. [ISBN 978-3-89973-432-4] - get paper here Lang, Ruud de & G. Vogel 2005. The snakes of Sulawesi. A field guide to the land snakes of Sulawesi with identification keys. Edition Chimaira, Frankfurter Beiträge zur Naturkunde, 25, Frankfurt am Main, 312 pp. Murphy, J.C. & Voris, H.K. 2014. A Checklist and Key to the Homalopsid Snakes (Reptilia, Squamata, Serpentes), with the Description of New Genera. FIELDIANA: LIFE AND EARTH SCIENCES (8): 1–43 - get paper here Murphy, John C. 2007. Homalopsid Snakes: Evolution in the Mud. Krieger Publishing, Malabar, Florida, 249 pp. RIDHA, MOHAMMAD ALI; MIRZA DIKARI KUSRINI, ANI MARDIASTUTI & NANCY KARRAKER. 2021. The amphibians and reptiles of Rawa Aopa Watumohai national park, southeast Sulawesi. Media Konservasi 26 (2): 128–138. - get paper here Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
External links	IUCN Red List National Center for Biotechnology Information https://www.facebook.com/groups/stshc/posts/343987757825829 Google images

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