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

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. On this website, they are grouped by external features for convenience of display.

Changi, Dec 10

Cyrene Reef, May 12

Cyrene Reef, May 12

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

Tiny under-a-stone top shell snails on Singapore shores

Photos of Tiny under-a-stone top shell snails for free download from wildsingapore flickr

Distribution in Singapore on this wildsingapore flickr map

Labrador, Mar 05

Lazarus, Aug 12

Chek Jawa, May 05

Tuas, Jun 15
Photo shared by Loh Kok Sheng on facebook.

Pulau Semakau East, Jan 16
Photo shared by Loh Kok Sheng on facebook.

Family Chilodontidae recorded for Singapore
from Tan Siong Kiat and Henrietta P. M. Woo, 2010 Preliminary Checklist of The Molluscs of Singapore.
in red are those listed among the threatened animals of Singapore from Davison, G.W. H. and P. K. L. Ng and Ho Hua Chew, 2008. The Singapore Red Data Book: Threatened plants and animals of Singapore.
^from WORMS.

  ^Family Chilodontidae
  Euchelus sp. (Tiny under-a-stone top shell snail) some place these in Family Chilodontidae
Euchelus asper
Euchelus atratus
Euchelus quadricarinatus=^Euchelus asper

Granata sulcifera

Hybochelus cancellatus

Pagodatrochus variabilis

Turcica maculata

FREE photos from wildsingapore tagged with Trochidae. Make your own badge here.
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