Resembling or relating to the Fistulariidae family of fish, which are long, slender tube-like marine fish found in tropical waters.
From Latin fistula (tube) + -oid (resembling), combined with modern Linnaean taxonomy suffix -idae used for fish families. The term describes fish that literally look like living tubes.
Fistularioid fish like the cornetfish use their bizarre tube-shaped heads and elongated bodies as a camouflage strategy—they blend in among seagrass and coral by looking like floating debris rather than actual predators.
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