Paramithrax (Chlorinoides) aculeatus   (Milne-Edwards)  (Crab)
Organism information awaits expert curation
Class: Malacostraca

Length of carapace: 38 mm.
Length of rostrum: 13 mm.
Length of carapace: 24 mm.
Length of rostrum: 9 mm.

Color: Dirty white.

The carapace is pyriform, convex, smooth, armed with five huge thorn-like spines down the middle line, and with two even larger spines on the branchial region. There are also, on either pterygostomian region, two oblique crests, the anterior with three to four teeth, two of which are visible in a dorsal view, and the posterior crest with one or two teeth.
The body and legs in this species are somewhat hairy and are encrusted with sponges, zoophytes, polyzoa etc. The specimen from Bombay is encrusted with coconut fibres.
The spine on the upper border of the merus is distinct in all the legs. There is another slightly smaller spine at the distal end of the posterior border in all the legs.
In the female, the first spine on the branchial region is cleft into two from the base. The rostral spines are only a little more than one-third the length of the carapace.
The anterior male abdominal appendage is straight, hairy at the tip, with a hook-like spine near the distal extremity

Synonym (s)
Mithrax aculeatus De Saussure and Stimpson, 1867
Chlorinus aculeatus var. armatus Miers, 1884
Chlorinus aculeatus Henderson, 1893
Paramithrax (Chlorinoides) aculeatus Alcock, 1895
Chlorinoides aculeatus Lanchester, 1900

Common Name (s)
Economic Importance and Threats

Habitat:  Rocky


• Gujarat, Okha INDIA
• Maharashtra, Mumbai INDIA
• Mergui MYANMAR
• Arakan Coast MYANMAR

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
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -

Page last updated on:2010-11-08

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