Skip to main content Skip to main navigation menu Skip to site footer
Type: Article
Published: 2026-05-04
Page range: 248-260
Abstract views: 65
PDF downloaded: 0

A new species of Gehyra (Gekkonidae) from the Solomon Islands formerly confounded with the regionally sympatric Gehyra oceanica Lesson, 1830

School of Environment and Science; Griffith University; 170 Kessels Rd; Brisbane; Queensland; 4121; and Biodiversity and Geosciences Program; Queensland Museum; South Brisbane; Queensland; 4101; Australia.
Herpetology Department; South Australian Museum; North Terrace; Adelaide; South Australia; 5000; Australia.
Reptilia cryptic species gecko lizard Greater Bukida overwater dispersal sympatry

Abstract

The Solomon Islands Archipelago comprises a complex array of islands that have never been connected by land with any other region, nonetheless they have a diverse and endemic biota. Here we describe a new species of gecko in the genus Gehyra that appears to be endemic to eastern portions of the paleo-island of Greater Bukida – the contemporary islands of Choiseul, Santa Isabel and Nggela Sule. Gehyra mccoyi sp. nov. was formerly confused with Gehyra oceanica, a species complex that occurs widely across the tropical Pacific including the Solomon Islands but can be distinguished by several aspects of scalation and by having a more depressed habitus. Gehyra mccoyi sp. nov. is the first species of Gehyra recognised that is endemic to the Solomon Islands, partially filling a gap between island systems to the east (Vanautu and Fiji) and west (Admiralty Islands) that are known to support endemic species in this genus.

 

References

  1. Beckon, W.N. (1992) The giant Pacific geckos of the genus Gehyra: morphological variation, distribution, and biogeography. Copeia, 1992, 443–460. https://doi.org/10.2307/1446204
  2. Brennan, I.G., Lemmon, A.R., Lemmon, E.M., Portik, D.M., Weijola, V., Welton, L., Donnellan, S.C. & Keogh, J.S. (2021) Phylogenomics of monitor lizards and the role of competition in dictating body size disparity. Systematic Biology, 70, 120–132. https://doi.org/10.1093/sysbio/syaa046
  3. Economo, E.P. & Sarnat, E.M. (2012) Revisiting the ants of Melanesia and the taxon cycle: historical and human-mediated invasions of a tropical archipelago. The American Naturalist, 180, E1–E16. https://doi.org/10.1086/665996
  4. Kraus, F. (2023) Redescription of Lepidodactylus flaviocularis (Squamata: Gekkonidae), with the description of a new species from Makira Island, Solomon Islands. Zootaxa, 5339 (6), 562–576. https://doi.org/10.11646/zootaxa.5339.6.5
  5. Kraus, F. (2024) New species of Gehyra (Squamata: Gekkonidae) from Papua New Guinea. Zootaxa, 5512, 240–271. https://doi.org/10.11646/zootaxa.5512.2.8
  6. Kraus, F., Vahtera, V. & Weijola, V. (2024) A new insular species of Gehyra (Squamata: Gekkonidae) from Papua New Guinea closely related to Gehyra oceanica. Systematics and Biodiversity, 22, 2404829. https://doi.org/10.1080/14772000.2024.2404829
  7. Lavery, T.H., Olds, A.D., Seddon, J.M. & Leung, L.K.P. (2016) The mammals of northern Melanesia: speciation, ecology, and biogeography. Mammal Review, 46, 60–76. https://doi.org/10.1111/mam.12057
  8. Lesson, R.-P. (1830) Reptiles. In: Duperrey, L.I. (Ed.), Voyage autour du monde, exécuté par ordre du roi, sur la corvette de sa majesté, La Coquille, pendant les années 1822, 1823, 1824 et 1825. Histoire Naturelle, Zoologie. Atlas. Arthus Bertrand, Paris, pl. 2, fig. 3 [Gecko des îles océaniennes, Gecko oceanicus, Less] https://doi.org/10.5962/bhl.title.57936
  9. Mayr, E. & Diamond, J.M. (2001) The Birds of Northern Melanesia: Speciation, Ecology & Biogeography. Oxford University Press, Oxford, xxiv + 492 pp. https://doi.org/10.1093/oso/9780195141702.001.0001
  10. McCoy, M. (2006) Reptiles of the Solomon Islands. Pensoft, Sofia, 147 pp.
  11. Moritz, C.C., Pratt, R.C., Bank, S., Bourke, G., Bragg, J.G., Doughty, P., Keogh, J.S., Laver, R.J., Potter, S., Teasdale, L.C., Tedeschi, L.G. & Oliver, P.M. (2018) Cryptic lineage diversity, body size divergence, and sympatry in a species complex of Australian lizards (Gehyra). Evolution, 72, 54–66. https://doi.org/10.1111/evo.13380
  12. Oliver, P.M., Brown, R.M., Kraus, F., Rittmeyer, E., Travers, S.L. & Siler, C.D. (2018a) Lizards of the lost arcs: mid-Cenozoic diversification, persistence and ecological marginalization in the West Pacific. Proceedings of the Royal Society B: Biological Sciences, 285, 20171760. https://doi.org/10.1098/rspb.2017.1760
  13. Oliver, P.M., Clegg, J.R., Fisher, R.N., Richards, S.J., Taylor, P.N. & Jocque, M.M. (2016) A new biogeographically disjunct giant gecko (Gehyra: Gekkonidae: Reptilia) from the East Melanesian Islands. Zootaxa, 4208 (1), 61–76. https://doi.org/10.11646/zootaxa.4208.1.3
  14. Oliver, P.M., Kraus, F., Austin, C.C., Tedeschi, L.G., O’Brien, A.R. & Maddock, S.T. (2024) Lineage diversity in a Melanesian lizard radiation (Gekkonidae: Nactus) further highlights exceptional diversity and endemism in eastern Papua New Guinea. Organisms Diversity & Evolution, 24, 557–572. https://doi.org/10.1007/s13127-024-00655-w
  15. Oliver, P.M., Laver, R.L., Lee, M.S., Kraus, F., Matzke, N., Austin, C.C., Fisher, R.N. & Moritz, C.C. (2026) Very limited dispersal and differing evolutionary trajectories across proximate continental and insular regions in a widespread lizard radiation (Gehyra). Biological Journal of the Linnean Society, 147, blag004. https://doi.org/10.1093/biolinnean/blag004
  16. Oliver, P.M., Sistrom, M., Tjaturadi, B., Krey, K. & Richards, S.J. (2010) On the status and relationships of the gecko species Gehyra barea Kopstein 1926, with description of new specimens and a range extension. Zootaxa, 2354 (1), 45–55. https://doi.org/10.11646/zootaxa.2354.1.4
  17. Oliver, P.M., Travers, S.L., Richmond, J.Q., Pikacha, P. & Fisher, R.N. (2018b) At the end of the line: independent overwater colonizations of the Solomon Islands by a hyperdiverse trans-Wallacean lizard lineage (Cyrtodactylus: Gekkota: Squamata). Zoological Journal of the Linnean Society, 182, 681–694. https://doi.org/10.1093/zoolinnean/zlx047
  18. Skipwith, P.L. & Oliver, P.M. (2014) A new Gehyra (Gekkonidae: Reptilia) from New Guinea with unique caudal scalation. Zootaxa, 3827 (1), 57–66. https://doi.org/10.11646/zootaxa.3827.1.5
  19. Tamura, K., Stecher, G. & Kumar, S. (2021) MEGA11: molecular evolutionary genetics analysis version 11. Molecular Biology and Evolution, 38, 3022–3027. https://doi.org/10.1093/molbev/msab120
  20. Tonione, M.A., Fisher, R.N., Zhu, C. & Moritz, C. (2016) Deep divergence and structure in the tropical oceanic Pacific: A multilocus phylogeography of a widespread gekkonid lizard (Squamata: Gekkonidae: Gehyra oceanica). Journal of Biogeography, 43, 268–278. https://doi.org/10.1111/jbi.12645
  21. Wilson, E.O. (1961) The nature of the taxon cycle in the Melanesian ant fauna. The American Naturalist, 95, 169–193. https://doi.org/10.1086/282174
  22. Zug, G.R. (2013) Reptiles and Amphibians of the Pacific Islands: A Comprehensive Guide. University of California Press, Berkeley, California, x + 306 pp. https://doi.org/10.1525/9780520955400

How to Cite

Oliver, P.M. & Richards, S.J. (2026) A new species of Gehyra (Gekkonidae) from the Solomon Islands formerly confounded with the regionally sympatric Gehyra oceanica Lesson, 1830. Zootaxa, 5802 (2), 248–260. https://doi.org/10.11646/zootaxa.5802.2.2