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Phylum Mollusca > Class Gastropoda > sea slugs > Order Cephalaspidea > Family Aglajidae
Reticulated tailed-slug
Philinopsis reticulata
Family Aglajidae
updated May 2020

Where seen? This small slug was seen at Cyrene in a sandy area near seagrasses and reefs.

Features: 2-3cm. A long, cylindrical body that appears to be made up of two parts. A pair of 'tails', one a little longer than the other. Dark body with tiny pale yellow spots. Flaps on the front and back of the body that are black or blue with large pale blobs.

What does it eat? Some species eat bubble shell snails, hunting them by following their slime trail then swallowing them whole.

Cyrene Reef, Mar 11
Reticulated tailed slug (Philinopsis reticulata)

Reticulated tailed-slugs on Singapore shores
On wildsingapore flickr

Other sightings on Singapore shores

Cyrene Reef, Feb 16
Photo shared by Loh Kok Sheng on flickr.



  • 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.
  • Debelius, Helmut, 2001. Nudibranchs and Sea Snails: Indo-Pacific Field Guide IKAN-Unterwasserachiv, Frankfurt. 321 pp.
  • Coleman, Neville. 2008. Nudibranchs Encyclopedia - Catalogue of Asia/Indo Pacific sea slugs. Neville Coleman's World of Water, Australia. 415pp.
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