Invertebrates
Flamingo Tongue Snail
Cyphoma gibbosum · also called flamingo tongue snails
A diver photographs a flamingo tongue snail perched on a sea fan, its vivid orange-spotted covering on full display, entirely unaware that the striking pattern being captured belongs not to a shell at all, but to living tissue the snail can pull back at will.
Overview
The flamingo tongue snail, Cyphoma gibbosum, is a small, vividly patterned marine snail found on soft coral colonies across Caribbean and western Atlantic reefs. Its living, retractable mantle pattern and specialised diet of soft coral tissue make it one of the more visually striking and ecologically specific small snails found on any reef.
Colour that isn’t where you’d expect it
Most people assume the flamingo tongue snail’s famous pattern belongs to its shell, but the real colour lives entirely in soft tissue the animal can withdraw at any moment, leaving behind a shell that gives away nothing about the display it normally covers.
Status
Least Concern — widespread and common across suitable coral reef habitat throughout the Caribbean and western Atlantic.
Flamingo Tongue Snail: common questions
Is the flamingo tongue snail's colourful pattern actually its shell?
No, the vivid orange-and-black-spotted pattern most people notice belongs to the snail's living mantle tissue, which covers and can fully retract from the shell, revealing a plain, unpatterned cream or white shell underneath that looks nothing like the colourful covering the animal is actually known for.
What does the flamingo tongue snail eat?
A flamingo tongue snail feeds almost exclusively on soft corals such as sea fans and other gorgonians, grazing directly on the living coral tissue and leaving a visible feeding scar on the colony as it slowly works its way across the surface over time.
Can flamingo tongue snails damage coral?
Because a flamingo tongue snail feeds so heavily and specifically on a single soft coral colony, repeated grazing by a resident individual can cause localised, visible damage to that particular colony over time, even though the species as a whole is not considered a broader threat to reef health.
Where does the flamingo tongue snail live?
The flamingo tongue snail is native to coral reef habitat across the Caribbean Sea and adjacent western Atlantic waters, generally found directly on the soft coral colonies it depends on for food.