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Phylum Mollusca > Class Gastropoda > sea slugs > Order Onchidiidae
Smooth little onch slug
awaiting identification*
Family Onchidiidae
updated Oct 08
Where seen? This tiny to small onch slug is commonly seen on sheltered, shady areas with thick mats small seaweeds on many of our shores. For example, rocky shores shaded by coastal trees and sea walls under a jetty or bridge. Often seen in groups of small numbers.

Features: 1-3cm. Body hard, long, very rounded with a rather smooth skin with small regular bumps. Generally greyish or brown to black. Sometimes with lighter spots. Eyes on long thin stalks. The underside is white with a broad foot.

Pulau Sarimbun, May 05
This onch slug can be very slippery so don't try to pick it up as you might drop it. The poor slug might get hurt and it may not be able to climb back up to where it can find food and safety.

Broad foot on the underside

Eyes on long thin stalks

Smooth onch slugs on Singapore shores

Changi, Jun 05


Sentosa, Jun 05

Labrador, May 06

Pulau Tekukor, Jan 10


St. John's Island, May 07

Chek Jawa, Apr 08
 

*Species are difficult to positively identify without close examination.
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