seen? This small stout cuttlefish edged with iridescent
glittering spots is sometimes seen among seagrasses especially on
our Northern shores. It is also called the Spineless cuttlefish because
its cuttlebone lacks a spine at the tip that many other cuttlefishes
have. 'Inermis' in Latin means 'harmless', 'peaceful'.
Features: 5-8cm long. Body oval
with fins all around the edges, with about 7 reddish patches and glittering
iridescent spots or dashes on each side of the body. Short fat arms.
Body texture generally smooth and does not form into bumps or pimples.
Glittering babies: Females, which are usually bigger than males, lay a single
black globular egg capsule, attaching it to a hard surface.
What does it eat? The cuttlefish
hunts fishes, crustaceans and other cephalopods.
Human uses: The cuttlefish is
an important commercial seafood harvested by trawls, nets with lights
at night. There has been efforts to aquaculture this cuttlefish.
Changi, May 05
The same cuttlefish rapidly changing ...
Changi, May 06
... colours and patterns.
Changi, May 06
cuttlefishes on Singapore shores
|Other sightings on Singapore shores
Changi, Sep 18
Photo shared by Dayna Cheah on facebook.
Pulau Semakau (West), Jan 21
Photo shared by Jonathan Tan on facebook.
thanks to Tay Ywee Chieh for identifying this cuttlefish.
- Tan Siong
Kiat and Henrietta P. M. Woo, 2010 Preliminary
Checklist of The Molluscs of Singapore (pdf), Raffles
Museum of Biodiversity Research, National University of Singapore.
- Norman, Mark
and Helmut Debelius, 2000. Cephalopods:
A World Guide.
ConchBooks, Germany. 319 pp.