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Phylum Mollusca > Class Cephalopoda > squids and cuttlefishes > Family Sepiidae
Glittering cuttlefish
Sepiella inermis

Family Sepiidae
updated May 2020
Where 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

Glittering cuttlefishes on Singapore shores
On wildsingapore flickr

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.

Grateful 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.
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