Pilodius areolatus   (H. Milne Edwards,  1834) (Crab)
Organism information awaits expert curation
Class: Malacostraca

Image copyrights: Guam

Carapace covered with a coat of very short pubescence, lobules of carapace deeply demarcated and convex, covered with pearly granules of equal size, ambulatory legs bordered with stiff hair.

Regions of carapace well defined, separated by deep grooves, 2 M divided into two longitudinally, 3 M tripartite, anterior lobe not reaching anterior margin of 2M, densely covered with minute setae, leaving free only pearliform granules. Submedian frontal lobes arched, minutely denticulate, separated by U shaped indentation, lateral lobes triangular, granulate. Antero-lateral margin quadrilobate, lobes rounded, granulate. Anterior margin of cheliped merus granulate. External surface of cheliped carpus with clusters of pearliform granules, one furrow parrellel with palmar joint. External surface of chela minutely setose, proximally set with large rounded granules, lower margin smooth. Poreiopods thickly fringed with plumose setae. Merus, carpus with conical tubercles on superior margin; carpus, propodus with pearliform granules externally.

Large numbers of this species occur in dead Acropora coral thickly covered with seaweeds Sargassum and Turbinaria species. Crabs identified by Borradaile (1902) as Actaea affinis was redetermined as Pilodius areolatus by Odhner.

Synonym (s)
Chlorodius areolatus H. Milne-Edwards, 1834
Actaeodes affinis Dana, 1852
Chlorodius perlatus MacLeay, 1838
Chlorodopsis areolata var. brandonensis Ward, 1942
Etisodes caelatus Dana, 1852
Xantho dehaani Krauss, 1843

Common Name (s)
Economic Importance and Threats
Importance:  Dangers

Habitat:  Reef Associated, Coastal


• Lakshadweep INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Andaman and Nicobar Islands INDIA
• Red Sea
• Karnataka INDIA (Record: 2001-2007)
• Tamil Nadu INDIA

Literature Source(s)
  • Jeyabaskaran, R; Wafar, S and Wafar, M (2002) CD on Brachyuran Crabs of West Coast, India Available at - http://www.nio.org/Biology/brachyuran/index.html
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Florida Museum of Natural History Available at - http://www.flmnh.ufl.edu/
  • Marine Biological Station, Chennai, Tamil Nadu (2003) Checklist of marine fauna of Tamil Nadu Department of Environment, Government of Tamil Nadu Available at - http://tnenvis.nic.in
  • Roy, MKD and Nandi, NC (2005) Brachyuran diversity of coral reef ecosystems in India Proceedings of the National Seminar on Reef Ecosystem Remediation SDMRI Special Research Publication No.9 220-231 Available at - http://www.sdmri.org/reports/proceedings%202005%20-%20sdmri.pdf
  • 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 - http://dx.doi.org/10.1080/02772248.2010.519452
  • Dineshbabu, AP; Durgekar, RN and Zacharia, PU (2011) Estuarine and marine decapods of Karnataka inventory Fishing Chimes Mr.J.V.H. Dixitulu 30 (10-11) 20-24 Available at - http://eprints.cmfri.org.in/7950/1/Dineshbabu-Fishing_Chimes_30(10%2611).pdf
  • 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:2011-10-11

Back to Search