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1 Tree was published in this study

A nesting of vipers: Phylogeny and historical biogeography of the Viperidae (Squamata: Serpentes).
Pook, Walker, Wüster, Peppin. (2008). Mol Phylogenet Evol.
Naja mossambica Naja nigricincta Naja cf. nigricollis Naja nigricollis Naja katiensis Naja nubiae Naja pallida Naja annulifera Naja haje haje Naja nivea Naja annulata Naja melanoleuca Naja multifasciata Naja sputatrix Naja siamensis Naja kaouthia Naja naja Hemachatus haemachatus Walterinnesia aegyptia Aspidelaps scutatus Elapsoidea nigra Ophiophagus hannah Laticauda colubrina Oxyuranus scutellatus Atractaspis bibronii Cerberus rynchops Hemorrhois nummifer Hemorrhois ravergieri Hemorrhois hippocrepis Hemorrhois algirus Boiga dendrophila Lycodon semicarinatus Pantherophis Afronatrix anoscopus Nerodia Alsophis Hypsiglena Vipera berus Vipera ammodytes Montivipera albizona Macrovipera lebetina Bitis Causus Porthidium lansbergii Porthidium arcosae Porthidium nasutum Azemiops feae Calloselasma rhodostoma
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