Ichthyoallyeinotoxism, or hallucinogenic fish poisoning, is caused by eating the heads or body parts of certain species of herbivorous fish and has previously only been recorded from the Indo Pacific. The effects of eating ichthyoallyeinotoxic fishes, such as certain mullet, goatfish, tangs, damsels and rabbitfish, are believed to be similar to LSD, and may include vivid and terrifying auditory and visual hallucinations. This has given rise to the collective common name for ichthyoallyeinotoxic fishes of "dream fish".