The Species Black List
Dendrelaphis papuensis
Trobriand bronzeback tree snake
The Trobriand bronzeback tree snake (Dendrelaphis papuensis) is known only from historical specimens with an unclear distribution within the Trobriand Islands.
Status Data Deficient on the IUCN Red List Restriction tier 2, restricted, extent unclear Class Reptilia Realm Papua-Melanesian Locality The Trobriand Islands As IUCN records it Dendrelaphis papuensis Boulenger, 1895 This species is one of 3,062 in a list of vertebrates the IUCN Red List records as Data Deficient or has never assessed, ranked by how narrowly restricted the published record says they are. The sentence above is the evidence the tier was read from, quoted from Matthew Richardson, Threatened and Recently Extinct Vertebrates of the World (2023).
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Check this species elsewhere: IUCN Red List · GBIF