sea slugs text index | photo index
Phylum Mollusca > Class Gastropoda > sea slugs > Order Sacoglossa
Strawberry slug
Costasiella sp.*
Family Costasiellidae
updated Oct 2016
Where seen? This tiny and superbly camouflaged slug is often found on solitary fan green seaweeds (Avrainvillea sp.) which they feed on. At low tide, many slugs are often seen on one sea fan, usually clustered near the base of this seaweed. It was previously in Family Limapontiidae.

Features: To about 1cm or smaller. Short, soft body with lots of short finger-like projections (cerata) that are transparent at the tips and filled with green stuff. Some have black spots, others with white stripes on the cerata. Tiny black eyes close together between the pair of long rhinophores. No oral tentacles.

It is difficult to tell apart the species in the field, but in general, Costasiella paweli and Costasiella kuroshimae look rather similar with cerata that are dark green, tips with bands of white and orange or pink. Costasiella usagi cerata have thin silvery lines along the length.

Pulau Hantu, Nov 09
Photo shared by James Koh on his blog.

St. John's Island, Feb 11
Photo shared byJames Koh on his blog.

Their eyes are close together
in between the rhinophores.
Tanah Merah, Dec 09

Tanah Merah, Dec 09

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

Strawberry slugs on Singapore shores

Photos of Strawberry slugs for free download from wildsingapore flickr

Distribution in Singapore on this wildsingapore flickr map


Chek Jawa, Jul 16
Photo shared by Toh Chay Hoon on facebook.


Pulau Sekudu, Oct 11
Photo shared by Rene Ong on facebook.

Tuas, Dec 14
Photo shared by Loh Kok Sheng on hig blog.


Tanah Merah, Oct 09
Photo shared by James Koh on his blog.

East Coast Park, Mar 10
Photo shared by Loh Kok Sheng on flickr.


Kusu Island, Jun 15
Photo shared by Toh Chay Hoon on facebook.

St John's Island, Feb 11
Photo shared by Loh Kok Sheng on flickr.

Big Sisters' Island, Feb 17
Photo shared by Marcus Ng on facebook.


Cyrene Reef, Feb 15
Photo shared by Heng Pei Yan on facebook.
.
Cyrene Reef, Jul 10
Photo shared by Toh Chay Hoon on her blog.

Cyrene Reef, Apr 10
Photo shared by Toh Chay Hoon on her blog


Terumbu Pempang Tengah, May 11
Photo shared by Rene Ong on facebook.

Terumbu Pempang Laut, Apr 11
Photo shared by James Koh on his blog.

Pulau Semakau South, Feb 16
Photo shared by Toh Chay Hoon on facebook.


Pulau Pawai, Dec 09
Photo shared by James Koh on his flickr.

Pulau Sudong, Dec 09
Photo shared by James Koh on his flickr.


Pulau Sudong, Dec 09
Photo shared by James Koh on his flickr.

Pulau Sudong, Dec 09
Photo shared by Toh Chay Hoon on her flickr.

shared by Neo Mei Lin on her blog

Family Costasiellidae recorded for Singapore
from Tan Siong Kiat and Henrietta P. M. Woo, 2010 Preliminary Checklist of The Molluscs of Singapore.
^K. R. Jensen. Sacoglossa (Mollusca: Gastropoda: Heterobranchia) from northern coasts of Singapore.

**from WORMS

  Family Costasiellidae
  Costasiella kuroshimae
Costasiella paweli
Costasiella usagi

Links

References

www.flickr.com
FREE photos from wildsingapore tagged with Sacoglossa. Make your own badge here.
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