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spines few, short, immovable, 1-2 atop tail basehead, body & fins: black spotsjuv: blue, spots larger & sparserChilomycterus reticulatus, Spotfin burrfish
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short, immovable spinesfins without spotstail base without spinesCyclichthys spilostylus, Yellow-spotted burrfish, Spotbase burrfish
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body blue + spotsD & A angularbody & fins: many spotsDiodon eydouxii, Pelagic porcupinefishsnout spines < body spines
top tail base: 2+ spines
many large erectile spines -
snout spines > body spines
tail base: without spines
many large erectile spinesbody blotches + few spots
dark bar through eye
fins - no spotsDiodon holocanthus, Long-spine balloonfish, Freckled porcupinefish -
snout spines < body spines
tail base: 1-2 spines
many large erectile spinesD & A roundedbody & fins spottedDiodon hystrix, Spotfin porcupinefish