Maximum length: 2.5 cm 

Maximum depth: 1 - 11 m

It feeds on hydrozoans, especially Macrorhynchia philippina.

Body shape: elongated.

It clings closely to the hydrozoans and attaches itself with a sticky mucus secretion.

So perfectly camouflaged that you can hardly recognize them even in photos.

This one was just changing places, otherwise we would hardly have spotted it.

Bangka Island North Sulawesi