The Species Black List
Canthigaster flavoreticulata
Tonga sharpnose pufferfish
The Tonga sharpnose pufferfish (Canthigaster flavoreticulata) is known only from a single specimen collected from a deep, rocky reef of the Tonga Ridge.
Status Data Deficient on the IUCN Red List Restriction tier 5, type locality or a single collection Class Actinopterygii Realm Oceanic Locality The Tonga-Kermadec Ridge As IUCN records it Canthigaster flavoreticulata Matsuura, 1986 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