| Family: Ichthyophiidae | | | | |
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| Ichthyophis singaporensis Taylor, 1960 | Ichthyophis singaporensis Taylor, 1960 | BMNH 1959.1.2.43 (holotype) | Native | — |
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| Family: Dicroglossidae | | | | |
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| Rana malesiana Kiew, 1984 | Limnonectes malesianus Kiew, 1984 | BMNH 1896.6.25.59–65 (holotype) | Native | — |
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| Family: Megophryidae | | | | |
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| Leptobrachium nigrops Berry and Hendrickson, 1963 | Leptobrachium nigrops Berry and Hendrickson, 1963 | FMNH 134719 (holotype) | Native | — |
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| Family: Microhylidae | | | | |
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| Micryletta subaraji Sankar, Law, Law, Shivaram, Abraham & Chan, 2022 | Micryletta subaraji Sankar, Law, Law, Shivaram, Abraham & Chan, 2022 | ZRC1.13370 (holotype) | Native | — |
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| Family: Testudinidae | | | | |
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| Manouria fusca Gray, 1854 | Manouria emys emys Schlegel & M̧ller, 1844 | BMNH 1947.3.4.57 (holotype) | Synonym; Type locality in error | Type locality corrected to “Pinang” (Gray 1855: 16) |
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| Family: Trionychidae | | | | |
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| Trionyx frenatus Gray, 1855 | Dogania subplana Geoffroy Saint-Hilaire, 1809 | BMNH (no #) (holotype) | Synonym | — |
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| Family: Agamidae | | | | |
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| Agama armata Hardwicke & Gray, 1827 | Acanthosaura armata Hardwicke & Gray, 1827 | BMNH 1946.8.13.88 & BMNH 1946.8.13.85 (syntypes) | Native | — |
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| Aphaniotis floweri Werner, 1900 | Aphaniotis fusca Peters, 1864 | MNHN-RA-1901.1 (holotype) | Synonym | — |
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| Draco abbreviata Hardwicke & Gray, 1827 | Draco abbreviatus Hardwicke & Gray, 1827 | BMNH 1873.3.7.6.xxiii (holotype) | Native | — |
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| Salea rosaceum Thominot, 1889 | Pseudocalotes tympanistriga Gray, 1831 | MNHN 6806 (holotype) | Synonym; Type locality in error | Type locality corrected to “Java” (Harvey et al. 2017: 94) |
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| Family: Eublepharidae | | | | |
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| Pentadactylus felinus Ģnther, 1864 | Aeluroscalabotes felinus Ģnther, 1864 | BMNH 1946.8.23.24 (holotype) | Native | — |
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| Family: Gekkonidae | | | | |
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| Cyrtodactylus majulah Grismer, Wood & Lim, 2012 | Cyrtodactylus majulah Grismer, Wood & Lim, 2012 | ZRC 2.6950 (holotype) | Native | — |
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| Cyrtodactylus pulchella Gray, 1827 | Cyrtodactylus pulchellus Gray, 1827 | BMNH XXII.91.a & BMNH XXii.91.b (syntypes) | Type locality in error | Type locality corrected to “Penang Island” (Grismer et al. 2012: 10) |
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| Nubilia Argentii Gray, 1845 | Hemidactylus depressus Gray, 1842 | BMNH XXII.32.a (holotype) | Synonym; Type locality in error | Type locality corrected to “Ceylon” (Taylor 1953: 1544) |
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| Pteropleura Horsfieldii Gray, 1827 | Ptychozoon horsfieldii Gray, 1827 | BMNH 1946.8.25.86 (holotype) | Native | — |
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| Family: Scincidae | | | | |
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| Eumeces (Mabouya) singaporensis Steindachner, 1870d | Emoia atrocostata Lesson, 1830 | NMW 16661 (holotype) | Synonym | — |
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| Euprepes (Riopa) punctatostriatus Peters, 1871 | Subdoluseps bowringii Ģnther, 1864 | ZMB 7013 (holotype) | Synonym | — |
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| Tytthoscincus temasekensis Grismer, Wood, Lim & Lim, 2017 | Tytthoscincus temasekensis Grismer, Wood, Lim & Lim, 2017 | ZRC 2.6490 (holotype) | Native | — |
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| Family: Acrochordidae | | | | |
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| Chersydrus annulatus Gray, 1849 | Acrochordus granulatus Schneider, 1799 | BMNH 1946.1.1.40 (syntype) | Synonym | — |
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| Family: Colubridae | | | | |
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| Ahaetulla bellii Gray, 1832 –1835 | Dendrelaphis pictus Gmelin, 1789 | painting | Synonym | — |
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| Coluber floweri Werner, 1925 | Gonyosoma oxycephalum H. Boie in F. Boie, 1827 | NMW 23423 (holotype) | Synonym | — |
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| Lycodon melanocephalus Gray, 1835 [in 1832–1835] | Sibynophis melanocephalus (Gray, 1834) | BMNH 1946.1.17.76 (holotype) | Native | — |
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| Nymphophidium maculatum Ģnther, 1864 | Lycodon subannulatus Duméril, Bibron & Duméril, 1854 | BMNH 1946.1.13.80 (holotype) | Synonym | — |
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| Psammophis nigrofasciatus Cantor, 1839 | Oreocryptophis porphyraceus nigrocinctus Cantor, 1839 | BMNH 1946.1.14.69 (holotype) | Synonym; Type locality in error | Type locality corrected to “Eastern China” (Pope 1935: 259) |
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| Simotes dennysi Blanford, 1881 | Oligodon purpurascens Schlegel, 1837 | BMNH 1883.11.28.13 (holotype) | Synonym | — |
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| Simotes signatus Ģnther, 1864 | Oligodon signatus Ģnther, 1864 | BMNH 1946.1.3.20 (lectotype) | Native | — |
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| Tropidonotus leucomelas Ģnther, 1863 | Rhabdophis flaviceps Duméril, Bibron & Duméril, 1854 | BMNH 1946.1.14.33 (holotype) | Type locality in error | Type locality corrected to “Pinang” (Ģnther 1864: 271) |
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| Family: Cylindrophiidae | | | | |
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| Cylindrophis lineatus Blanford, 1881 | Cylindrophis lineatus Dennys, 1880 | BMNH 1946.1.16.5 (neotype) | Type locality in error | Type locality corrected to “Borneo” (Figueroa & Low 2021: 182) |
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| Cylindrophis mirzae Amarasinghe et al., 2015 | Cylindrophis ruffus Laurenti, 1768 | MNHN 3279 (holotype) | Synonym | — |
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| Family: Elapidae | | | | |
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| Elaps nigromaculatus Cantor, 1839 | Calliophis gracilis Gray, 1834 | BMNH 1946.1.16.17 (holotype) | Synonym | — |
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| Elaps furcatus Cantor, 1839 | Calliophis intestinalis lineata Gray, 1835 | BMNH 1946.1.18.2 (lectotype) | Synonym | — |
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| Family: Homalopsidae | | | | |
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| Cantoria violacea Girard, 1858a | Cantoria violacea Girard, 1858a | USNM 5523 (holotype) | Native | — |
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| Coluber buccatus Linnaeus, 1758 | Homalopsis buccatus Linnaeus, 1758 | FMNH 250114 (neotype) | Native | — |
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| Hemiodontus chalybaeus Jan, 1863 | Fordonia leucobalia Schlegel, 1837 | MSNM (holotype) [Lost] | Synonym | — |
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| Family: Pythonidae | | | | |
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| Python curtus brongersmai Stull, 1938 | Python brongersmai Stull, 1938 | MCZ 29779 (holotype) | Native | — |
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| Family: Typhlopidae | | | | |
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| Argyrophis bicolor Gray, 1845 | Argyrophis muelleri Schlegel, 1839 | BMNH 1946.1.10.63 (holotype) | Synonym | — |
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| Family: Viperidae | | | | |
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| Trigonocephalus Zara Gray, 1849 | Hypnale zara Gray, 1849 | BMNH 1946.1.19.96 (holotype) | Type locality in error | |
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| Trimeresurus purpureomaculatus Gray, 1831 | Trimeresurus purpureomaculatus Gray, 1831 | BMNH 1946.1.19.54 (holotype) | Native | — |
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| Trimesurus maculatus Gray, 1842 | Tropidolaemus wagleri H. Boie in F. Boie, 1827 | BMNH 1946.1.17.69 (lectotype) | Synonym | — |
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