Trigonostoma scalare

This species attains a length of around 30 mm, while large specimens can reach 45 mm. It has a consistent spiral staircase-like shaped shell, with colors ranging from white, yellow, orange, and brown. It's not known how exactly it feeds, but it's speculated that it's a suctorial feeder— living off the body fluids and predator eggs of other animals.^[2]

This species of sea snail is moderately common, and it can be found in the Philippines, Sri Lanka, Australia, and the Indo-West Pacific. Most specimens are obtained by tangle nets in the Philippines, and they inhabit waters of moderate depth, around the depth of -10 to 30m.^[2]