shelled snails text index | photo index
Phylum Mollusca > Class Gastropoda
Family Epitoniidae
updated Aug 2020
Where seen? A tiny one was seen among a bloom of seaweeds on a sandy shore in Seletar. 'Wentletrap' is the Dutch word for 'spiral staircase'. The elegant shell does indeed resemble one!

Features: A distinctive shell with a long turret and strong sharp ribs across all of the whorls. Shells generally white with a porcelain-like texture. A circular shell opening with a shelly operculum, usually black. Eggs are laid in sand-covered strings resembling a necklace.

What do they eat? Though the circular shell opening suggest the snails are herbivourous, there are suggestions that those with purple body and purple stains on the shell may be carnivorous. Some may produce a purple dye. Some of them are believed to eat sea anemones that live in sand.

Seletar, Feb 12

Wentletrap snails on Singapore shores
On wildsingapore flickr

Family Epitoniidae recorded for Singapore
from Tan Siong Kiat and Henrietta P. M. Woo, 2010 Preliminary Checklist of The Molluscs of Singapore.
^from WORMS

  Family Epitoniidae
  Acrilla acuminata
Acrilla minor

Amaea magnifica
Amaea ogaitoi
Amaea xenicima

Cirsotrema bavayi=^Cirsotrema varicosum
Cirsotrema cloveri
Cirsotrema multiperforata=^Cirsotrema varicosum

Cycloscala hyalina

Eglisia tricarinata

Epitonium bulbulum
Epitonium clementinum
Epitonium hayashii
Epitonium inexpertum
Epitonium lamellosum=^Gyroscala lamellosa
Epitonium lineolatum
Epitonium pallasi neglectum
Epitonium replicatum
Epitonium sexcostum
Epitonium tomlini

Filiscala martinii



  • Tan Siong Kiat and Henrietta P. M. Woo, 2010 Preliminary Checklist of The Molluscs of Singapore (pdf), Raffles Museum of Biodiversity Research, National University of Singapore.
  • Abbott, R. Tucker, 1991. Seashells of South East Asia. Graham Brash, Singapore. 145 pp.
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