molluscs text index | photo index
Phylum Mollusca > Class Gastropod > sea slugs
Photo index of sea slugs on Singapore shores
slugs without external gills: body smooth


Bumpy-faced
armina nudibranch

awaiting identification

Tiny striped
nudibranch

Dermatobranchus sp.
 

Halimeda slug

Elysia pusilla
2-6 cm long. Body long, narrow with fine black-and-white stripes. Blue foot with yellow or orange border. Sandy areas near seagrasses. Commonly seen on our Northern shores. About 3cm. Body long, narrow, striped with white edges. Has lots of bumps on the oral veil. Seagrasses. Commonly seen on Changi and our Northern shores. 1-2cm. Body long and skinny, striped with white unmarked feet, yellow margin on the oral veil. Near reefs, on sand or seaweeds. Sometimes seen on our Southern shores.   0.5-1.5cm. Body oval, flat, featureless. On Halimeda seaweed, usually the same colour as the seaweed. Sometimes seen on some of our shores.

'Attap chee' slug
Philine orientalis

Moon-headed
side-gill slug

Euselenops luniceps

Forskal's
side-gill slug

Pleurobranchus forskalii
 
4-6cm. Body oval wedge-shaped smooth white, made up of lobes. Burrowing in clean sand. Sometimes seen. 3-7cm. Body smooth and almost circular, plain white or beige with black spots. Wide oral veil. Sometimes seen on some of our shores. 8-10cm long. Body broad and oval, plain without markings. Releases substance with medicinal smell. Burrowing in soft silty areas. Sometimes seen on our Northern shores. 20-30cm. Very large. Body broad oval, with texture of shallow bumps, in circular designs. Colour from completely dark to shades of brown. A pair of tubular rhinophores Sometimes seen on some of our shores.  

These are NOT sea slugs

Hoof-shield limpet
Phylum Mollusca
Flatworms
Phylum Annelida
Class Polycladida

Synaptid sea cucumbers
Phylum Echinodermata
Class Holothuroidea
   

how to tell apart



photo index of
molluscs on this site
Phylum Mollusca
all molluscs

sea slugs

external gills
body features
  small <5cm
large >5cm
very large >10cm

no external gills
body features
  two flaps
with bumps
hairy
smooth
external shell
others
links | references | about | email Ria
Spot errors? Have a question? Want to share your sightings? email Ria I'll be glad to hear from you!
wildfactsheets website©ria tan 2008