molluscs text index | photo index
Phylum Mollusca > Class Gastropod > sea slugs
Photo index of sea slugs on Singapore shores
slugs with external gills: very large >10cm




Platydoris
nudibranch

Platydoris scabra



Cauliflower
nudibranch

Dendrodoris tuberculosa



Sponge nudibranch
Ategema spongiosa



Fugly nudibranch
Actinocyclus
sp.



Wedge sea hare
Dolabella auricularia
10-12cm long. Body broad, stiff body, smooth surface orange edges. White plain underside. Among living reefs. Sometimes seen on our Southern shores. 12-15cm long. Upper side with lots of conical bumps arranged in clusters. Distinctive underside dark with large pale round spots. Seagrasses and reefs. Sometimes seen on our Southern shores. 8-12cm long. Body humped, hard and heavy, with regular 'holes' on the sides. Underside dark or deep purple.Coral rubble. Sometimes seen on our Northern shores. 10-12cm long. Body leathery, with a flat portion on the back where stubby gills emerge. The gills often resemble a 'bubble'. The rhinophores are stumpy too. Coral rubble. Sometimes seen on some of our shores. 10-12cm long. NO external gills. Body with a flat portion on the back. Reefy area. Sometimes seen on our Southern shores.

These are NOT sea slugs

Hoof-shield limpet
Phylum Mollusca

Cowries
Phylum Mollusca
Family Cypraeidae
Flatworms
Phylum Annelida
Class Polycladida
 

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