sea hares text index | photo index
Phylum Mollusca > Class Gastropoda > sea slugs > Order Anaspidea
Seagrass sea hare
Phyllaplysia sp.*
Family Aplysiidae
updated May 2020
Where seen? This tiny slug is sometimes seen in numbers on Tape seagrass on our Southern shores.

Features: 1cm or less. Long narrow, flat body. It has two pairs of tentacles and tiny black eyes. Some seen were translucent green with fine white lines. The internal organs show through as white or yellow blobs or strings. One was seen was solid green. Another had colours and patterns that perfectly matched the encrusted Tape seagrass. Sometimes, extremely tiny ones are seen among bigger ones.

What does it eat? It seems to graze on algae and/or other encrusting organisms growing on the seagrass blades as the area around the slug is often 'clean' of encrusting growths.

Pulau Hantu, Nov 09

Tiny ones!
Pulau Hantu, Feb 10

Pulau Hantu, Feb 10

St. John's Island, Nov 12

St. John's Island, Nov 12

St. John's Island, Nov 12

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

Seagrass sea hares on Singapore shores
On wildsingapore flickr

Other sightings on Singapore shores

Kusu Island, Aug 23
Photo shared by Chay Hoon on facebook.

Filmed on Pulau Hantu, Jan 11

transparent Enhalus ghost slug 22Jan2011 from SgBeachBum on Vimeo.



  • Humann, Paul and Ned Deloach. 2010. Reef Creature Identification: Tropical Pacific New World Publications. 497pp.
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