Kraussia rugulosa   (Krauss,  1843) (Crab)
Organism information awaits expert curation
Class: Malacostraca

Image copyrights: FLMNH

Carapace much broader than long, transversely suboval in outline. Front obscurely divided into four lobes, the inner two of which being narrower. No preorbital fissure, but an upper orbital one may be present. Tip of anterior pleopod of male dilated into a slender stripe.

Carapace about four-fifths as long as broad, little convex, smooth to the naked eye, but with fine transverse subsquamiform pitting under the lens. Frontal, orbital, and anterolateral borders elegantly uniformly and conspicuously denticulate, and fringed with long stiff silky hairs. Front cut into two broad lobes, each of which shows a very slight tendency to be divided into two lobes. Dorsal surface of roof of orbit without any marked grooves. Chelipeds about as long as the carapace. The fingers are very short and stumpy, the dactylus closing very obliquely on a short straight immobile finger that is little better than a tubercle. On the outer surface of the hand is some fine subsquamiform sculpture, on the upper surface of the finger are some bluntly-dentiform granules in rows, and there are some granules near the inner angle of the wrist. Legs stoutish, slightly shorter and much less massive than the chelipeds. The dorsal surfaces of the propodites and the dactyli-as of the carpopodites also in their distal end are abundantly and elegantly denticulate. All the dactyli are blade like.

Synonym (s)
Platyonichus rugulosa Krauss, 1842
Kraussia proporcellana Ward, 1934
Trichocera porcellana White, 1848

Common Name (s)
Economic Importance and Threats

Habitat:  Reef Associated, Sandy, Coastal


• Lakshadweep INDIA
• Andaman and Nicobar Islands 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 -
  • Florida Museum of Natural History Available at -
  • Sealifebase Available at -
  • 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 -

Page last updated on:2011-01-27

Back to Search