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Phylum Mollusca > Class Gastropoda > Family Trochidae
Tiny under-a-stone top shell snail
Eucelus sp.*
Family Trochidae
updated Apr 13
Where seen? This tiny snail is often seen in small groups under stones on some of our shores.

Features: 1-1.5cm. Shell globular with fine ribs and fine hairs. Shell opening has shiny mother of pearl and is ribbed. Colours black, greyish, dark red or orange. Operculum thin, made of a horn-like material, yellow or orange. Body pale, edge of the mantle fringed with tentacles. Small foot pale on the underside, fine black stripes on the upperside. A pair of long tentacles at the head.

Several species listed for Singapore may look like this. These include Euchelus asper, Euchelus atratus and Euchelus quadricarinatus. Some place these snails under the Family Chilodontidae instead of Trochidae. On this website, they are grouped by external features for convenience of display.

Changi, Dec 10

Cyrene Reef, May 12

Cyrene Reef, May 12


Labrador, Mar 05

Lazarus, Aug 12

Chek Jawa, May 05

Tiny under-a-stone top shell snails on Singapore shores
Photos for free download from wildsingapore flickr

*Species are difficult to positively identify without close examination.
On this website, they are grouped by external features for convenience of display.
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