Ashtoret lunaris   (Forskal,  1775) (Crab)
Organism information awaits expert curation
Class: Malacostraca

Image copyrights: NIO, Goa

Size: Max length 5.0 cm CW (male)

Surface of carapace minutely granulate, coarser granules laterally and around six dorsal tubercles, largest granules surrounding mesogastric tubercle. Front with straight lobes laterally and a slightly emarginated rostrum medially. Exognath and ischium of third maxilliped tuberculate. Anterolateral margins of carapace crenulate with five small tubercles followed by three large triangular tubercles, middle tubercle smallest. Lateral spine 0.2 carapace width. Posterolateral margin oblique, with granulate carina not quite reaching base of lateral spine. Tubercle at mid posterolateral margin strongly marked. Upper external surface of palm with two rows of granulate tubercles, proximal-most in lower row largest. Mid palm a five-lobed ridge, second and fourth lobes acuminate, second lobe largest. At lower proximal angle of palm conical tubercle. A row of molariform tubercles extending from lower proximal angle of palm to base of immobile finger. Lower margin with row of triangular tubercles terminating at base of dactylus, distal most largest. A finely milled ridge on outer surface of dactylus in male, absent in female. First male pleopod with pronounced angle between shaft and apical lobe.

Synonym (s)
Matuta banksii Leach, 1817
Cancer lunaris Forskal, 1775
Matuta lunaris (Forskal, 1775)

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

Habitat:  Estuarine, Sandy, Coastal


• Lakshadweep INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Andaman and Nicobar Islands INDIA
• Red Sea
• Karnataka INDIA (Record: 2001-2007)
• Tamil Nadu, Pulicat Lake (Lat: 13.41) (Long: 80.05) INDIA
• Tamil Nadu, Pulicat Lake (Lat: 13.91) (Long: 80.31) INDIA
• Tamil Nadu INDIA
• West Bengal (Lat: 21.16) (Long: 85.83) INDIA
• West Bengal (Lat: 21.63) (Long: 89.83) INDIA
• West Bengal, South 24 Parganas INDIA

Literature Source(s)
  • Jeyabaskaran, R; Wafar, S and Wafar, M (2002) CD on Brachyuran Crabs of West Coast, India Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Sealifebase Available at -
  • 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 -
  • Roy, MKD and Nandi, NC (2008) Brachyuran biodiversity of some selected brackishwater lakes of India Proceedings of Taal2007: The 12th World Lake Conference 496-499 Available at -
  • 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
  • Roy, MKD and Nandi, NC (2008) Checklist and distribution of Brachyuran crabs of West Bengal, India Journal of Environment and Sociobiology Social Environmental and Biological Association, Kolkata, India 5(2) 191-214 Available at - NIO,Goa
  • Roy, MK (2010) Diversity and Distribution of Crustacea Fauna in wetlands of West Bengal Journal of Environment and Sociobiology Social Environmental and Biological Association, Kolkata, India 7(2) 147-187 Available at - NIO,Goa

Page last updated on:2011-11-04

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