Macrophthalmus sulcatus   Milne Edwards,  1852 (Crab)
Organism information awaits expert curation
Class: Malacostraca

Image copyrights: NIO, Goa

Size: Length of carapace: 7 mm; breadth of carapace: 17 mm.

The eyestalks project slightly beyond the antero-lateral angles of the carapace. The true first tooth of the lateral border of the carapace belongs to the upper border of the orbit, and the anetro-lateral angle of the carapace is formed by the true second tooth.

Carapace free of granules in the female, studded with minute granules in the male, its length in the male only about three eighths, in the female nearly half its greatest breadth. The true first anterolateral tooth appears to belong to the upper border of the orbit, so that the anterolateral angle of the carapace is formed by the much larger second tooth, which also is the apparent outer orbital angle. The eyes reach not only beyond the orbits, but also beyond the anterolateral angles. The tip of the anterior male abdominal appendage is rounded and broadened like a drum-stick, and bears coarse hairs. At the upper border of the inner angle of the wrist is a sharp spinule and there is another exactly below it on the lower border. The spoon is short and broad, and consists of about five backwardly directed saw-like lobes. In the male chelipeds, anterior border of the arm is hairy and strongly denticulated. The inner angle of the wrist and the proximal part of the upper border of the palm are also denticulated. In the female the chelipeds are short and weak as usual, and the hand is quite smooth and has the borders. The lower border is thin and sharp.

Synonym (s)
Macrophthalmus sulcatus A. Milne Edwards, 1852
Macrophthalmus sulcatus Alcock, 1900

Common Name (s)
Economic Importance and Threats

Habitat:  Muddy


• Maharashtra, Mumbai (Lat: 18.98) (Long: 72.83) INDIA
• West Coast INDIA
• Andaman and Nicobar Islands INDIA
• Gujarat, Umarsadi INDIA
• Maharashtra, Mumbai INDIA
• Gujarat, Kachchh INDIA

Literature Source(s)
  • Chhapgar, BF (1957) Marine crabs of Bombay state Contribution No. 1 of the Taraporevala Marine Biological Station Marine Biological Station, Department of fisheries, Bombay 89 pp Available at - NIO, Goa
  • Alcock, A (1968) Materials for a carcinological fauna of India the Brachyura Oxyrhyncha The Baptist Mission Press 1 1-456 Available at - Pune University, Pune
  • Ramakrishna; Sarkar, J and Talukdar, S (2003) Marine invertebrates of Digha coast and some recomendations on their conservation Records of the Zoological Survey of India ZSI, Kolkata 101(3-4) 1 Available at - NCL, Pune
  • 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 -

Page last updated on:2010-10-29

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