Christmas Tree Worm

Spirobranchus giganteus

The tree-shaped spirals are its gills and mouth combined; it burrows into living coral for a lifelong home.

The real colors of this species — match them or invent your own.

Get the printable card → See the free pages

Printable in Mini Pack 05 ($4.99) or the complete volume ($11.99)

Size

3–4 cm

Depth

~30 m

Range

Worldwide, tropical

Habitat

Reefs

IUCN

Not Evaluated

How to spot

A pair of spiral fir-tree-shaped crowns rising from a tube set in coral; red, blue, yellow and white; symmetrical double spirals.

True colors

Twin spiral crowns in bright colors - blue, red, orange, yellow, or white, sometimes striped; the body stays hidden in a tube.

This species is one of nine in Mini Pack 05 · Weird & Wonderful — each pack adds a full-page art print of every species plus a color reference sheet. Browse the packs →

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