Demania scaberrima   (Walker,  1887) (Crab)
Organism information awaits expert curation
Class: Malacostraca

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Synonym (s)
Xantho scaberrima Walker, 1887

Common Name (s)
• Demon Crab (English)
Economic Importance and Threats
Importance:  Dangers
(Poisonous. It is still not known how they accumulate the toxins, most of which are similar to those in puffer fishes (neurotoxins), or why they themselves are immune to it. These toxins cannot be destroyed by cooking, and are extremely potent. The toxins are in the flesh and cannot be transmitted if one is pinched by the claws. Most of poisonous crabs have very bright warning colours, and it is a good practice to avoid eating them.)

Habitat:  Coastal


• Orissa, Mahanadi Estuary (Lat: 20.32) (Long: 86.75) INDIA
• Tamil Nadu, Chennai Coast INDIA
• Tamil Nadu INDIA
• Orissa INDIA
• Andaman and Nicobar Islands INDIA

Literature Source(s)
  • Zoological Survey of India (Eds.) (1998) Fauna Of Mahanadi estuary, Orissa Estuarine ecosystem series no 3 ZSI, Kolkata 1-218 Available at - ZSI, Pune
  • Ng, PKL and Yang, CM (1989) On some species of Demania Laurie, 1906 (Crustacea: Decapoda: Brachyura: Xanthidae) from Malaysia, Singapore and the Philippines, with a key for the genus Raffles Bulletin of Zoology 37(2) 37-50 Available at - Zoological Records
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Dr. Ramesh, R; Dr. Nammalwar, P and Dr. Gowri, VS (2008) Database on coastal information of Tamil Nadu Report Submitted to Environmental Information System (ENVIS) Centre, Department of Environment, Government of Tamil Nadu Institute for Ocean Management, Anna University, Chennai, Tamil Nadu. Available at -
  • Available at -
  • Tan, LWH and Ng, PKL A guide to seashore life in Singapore Available at -
  • Fredrick, WS; Ravichandran, S and Balasubramanian, T (2011) Toxicity of Brachuryan crabs in India Toxicological & Environmental Chemistry Informa UK Ltd 93(2) 406-411 Available at -
  • Kathirvel, M (2009) Marine poisonous brachyuran crabs of India Fishing chimes 29(9) 24-29 Available at - NIO, Goa
  • Roy, MKD and Nandi NC (2007) Brachyuran diversity in coastal ecosystems of Tamil Nadu Journal of Environment and Sociobiology Social Environmental and Biological Association, Kolkata, India 4(2) 169-192 Available at - NIO,Goa

Page last updated on:2011-10-10

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