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Phylum Mollusca > Class Cephalopoda > squids and cuttlefishes > Family Sepiidae
Curvespine cuttlefish
Sepia recurvirostra
Family Sepiidae
updated May 2020

Where seen? Chubby cuttlefishes are sometimes common on our Northern shores. Seen among seagrasses, hovering slowly close to the ground. 'Recurvirostra' means 'curved spine' referring the shape of the spine on its cuttlebone, not visible in a living animal.

Features: 4-6cm long, grows up to 17cm long and weighs 0.4kg. Squat oval body with short tapered arms. Narrow transparent fins all around the body. There is a pattern of small bumps extending into the fins along the edge where the fins attach to the body. Patterns include mottled bands with circles, to more muted bands. The animal can change the body texture from smooth to spiky.When alarmed, it tucks its arms under its heads and the tips of the middle arms are often held upright.

Human uses: The cuttlefish is harvested commercially in Hong Kong and Thailand by traw and net.

Changi, Apr 07

Spine sticking out of the back end.


Inking.
Chek Jawa, May 05

Only slightly bigger than a blade of seagrass.
Chek Jawa, Sep 03

Changi, Apr 05

Curvespine cuttlefishes on Singapore shores
On wildsingapore flickr

Other sightings on Singapore shores


Cyrene Reef, Jul 10
Photo shared by Loh Kok Sheng on his blog.

Changi, Jun 13
Photo shared by Loh Kok Sheng on his blog.


St John's Island, Apr 21
Photo shared by Loh Kok Sheng on facebook.

Chek Jawa, Nov 17
Photo shared by Abel Yeo on facebook.

Acknowledgement
Grateful thanks to Tay Ywee Chieh for identifying this cuttlefish.

Links
References
  • 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.
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