HomeFish encyclopediaRay-finned fishesPerch-like fishSplendid perchesLong-tailed groppo Long-tailed groppo (Grammatonotus crosnieri) Scientific name: Grammatonotus crosnieri Fourmanoir, 1981 The Long-tailed groppo (Grammatonotus crosnieri) is a marine fish of the family Callanthiidae. Native range: Western Central Pacific, known only from the Philippines, off the southwestern coast of Luzon. Species factsScientific nameGrammatonotus crosnieriFamilyCallanthiidae (Splendid perches)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length12.0Depth range170–210 m (558–689 ft)EnvironmentMarine; bathydemersal; depth range 170 - 210 mClimateDeep-waterDistributionWestern Central Pacific: known only from the Philippines, off the southwestern coast of Luzon.Conservation status (IUCN)Not EvaluatedThreat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026