Atrophacanthus japonicus

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Atrophacanthus is a monospecific genus of marine ray-finned fish belonging to the family Triacanthodidae, the spikefishes. The only species in the genus is Atrophacanthus japonicus, the upward-mouth spikefish, which is found in the Indo-West Pacific region. Taxonomy Atrophacanthus was first proposed as a monospecific genus in 1950 by the British ichthyologist Alec Fraser-Brunner when he described Atrophacanthus danae, its type species by monotypy.

Los cochis espinosos son la familia Triacanthodidae de peces marinos incluida en el orden Tetraodontiformes, distribuidos por aguas tropicales y subtropicales del Atlántico, Índico y Pacífico. ​ Su nombre procede del griego: tria (tres) + akantha (aguijón). ​ Tienen la aleta caudal entre redondeada y truncada, en la aleta dorsal 12 a 18 radios y en la aleta anal 11 a 16.