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Cephaloscyllium sarawakensis

(Sarawak Pygmy Swell Shark)

Common Names

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Click on the language to view common names.

Common Names in English:

Sarawak Pygmy Swell Shark, Swell shark

Common Names in Japanese:

Ko nanukazame, Ko-Nanukazame

Common Names in Malay:

Yu Buncit, Yu Buntal, Yu Kembong


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Biome: Marine [1].

Ecology: This benthic shark is known from few specimens collected at the edge of the continental shelf at depths of 118-165m. The species reaches a maximum size of 40.8 cm total length (TL ); males mature at 32.5?37.2 cm TL and females at 35.4?40.8 cm TL (Yano et al. 2005). Very little is known of its habitat and biology . Egg cases observed within the uteri of a pregnant female measured 3.2 cm width by 9.8 cm length (Yano et al. 2005). Size at birth is estimated at about 10 cm TL (Yano et al. 2005).[1].

List of Habitats:


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Cephaloscyllium circulopullumCephaloscyllium parvum


Name Status: Accepted Name .

A taxonomic comparison of this species and Cepahloscyllium circulopullum needs to be carried out as these two species may be one in the same.

Cephaloscyllium parvum is a junior synonym of C. sarawakensis (Schaaf-Da Silva and Ebert 2008).[1].

Similar Species

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Members of the genus Cephaloscyllium

ZipcodeZoo has pages for 21 species and subspecies in this genus:

C. albipinnum (Whitefin Swellshark) · C. circulopullum (Circle-Blotch Pygmy Swell Shark) · C. cooki (Cooks Swellshark) · C. fasciatum (Reticulated Swell Shark) · C. isabellum (Whitefinned Swellshark) · C. hiscosellum (Reticulate Swellshark) · C. isabella nascione (Whitefinned Swellshark) · C. isabellum (Draughtsbroad Shark) · C. laticeps (Whitefinned Swellshark) · C. maculatum (Spotted Swellshark) · C. pardelotum (Leopard-Spotted Swellshark) · C. pictum (Painted Swellshark) · C. sarawakensis (Sarawak Pygmy Swell Shark) · C. signourum (Flagtail Swellshark) · C. silasi (Indian Swell Shark) · C. speccum (Speckled Swellshark) · C. sufflans (Balloon Porcupinefish) · C. umbratile (Japanese Swellshark) · C. variegatum (Saddled Swellshark) · C. ventriosum (Swell Shark) · C. zebrum (Narrowbar Swellshark)

More Info

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Further Reading

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  1. Ebert, D.A., Ali, A., Pek Khiok, A.L. & Valenti, S.V. 2009. Cephaloscyllium sarawakensis. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <>. Downloaded on 31 January 2012. [back]
Last Revised: 2014-11-21