1 The taxonomic history of the enigmatic Papuan snake genus Toxicocalamus 2 (Elapidae: Hydrophiinae), with the description of a new species from the 3 Managalas Plateau of Oro Province, Papua New Guinea, and a revised 4 dichotomous key 5 6 Mark O’Shea1, Allen Allison2, Hinrich Kaiser3 7 8 1 Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, 9 Wolverhampton, WV1 1LY, United Kingdom; West Midland Safari Park, Bewdley, 10 Worcestershire DY12 1LF, United Kingdom. 11 2 Department of Natural Sciences, Bishop Museum, 1525 Bernice Street, Honolulu, 12 Hawaii 96817, U.S.A. 13 3 Department of Biology, Victor Valley College, 18422 Bear Valley Road, 14 Victorville, California 92395, U.S.A.; and Department of Vertebrate Zoology, 15 National Museum of Natural History, Smithsonian Institution, Washington, DC 16 20013, U.S.A. 17
[email protected] (corresponding author) 18 Article and Review 17,262 words 19 1 20 Abstract: We trace the taxonomic history of Toxicocalamus, a poorly known genus of 21 primarily vermivorous snakes found only in New Guinea and associated island 22 archipelagos. With only a relatively limited number of specimens to examine, and the 23 distribution of those specimens across many natural history collections, it has been a 24 difficult task to assemble a complete taxonomic assessment of this group. As a 25 consequence, research on these snakes has undergone a series of fits and starts, and we 26 here present the first comprehensive chronology of the genus, beginning with its 27 original description by George Albert Boulenger in 1896. We also describe a new 28 species from the northern versant of the Owen Stanley Range, Oro Province, Papua 29 New Guinea, and we present a series of comparisons that include heretofore underused 30 characteristics, including those of unusual scale patterns, skull details, and tail tip 31 morphology.