Schizophrys aspera   (H. Milne Edwards,  1834) (Crab)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Arthropoda
Class: Malacostraca
Order:Decapoda
Family:Majidae

Description
Size: Length of carapace 31 mm; breadth of carapace 27 mm; length of rostrum 5 mm; length of cheliped 37 mm; length of hand 12 mm; length of finger 6 mm

Color: Grey; chelipeds, tubercles and spines pearly white.

It can be distinguished by the pyriform carapace, the greatest breadth of which is nine-tenth its length behind the point of bifurcation of the rostral spines. The outer border of each of the rostral spines carries a strong accessory spine. The length of the rostral spines is from one-fifth to one-sixth that of the carapace. A spine is present ventrally on the subhepatic region outside the angle of the buccal frame.
The body and legs are hairy, and the animal protects itself with flat pieces of Nullipore, etc.
In the female an enlarged tubercle exists between the true third and fourth spines of the antero-lateral border at a lower level. There is another tubercle in both the sexes between and above the tubercles marking the posterior border. The anterior male abdominal appendage is straight, blunt at the tip, with a few hairs and minute spines near the tip.

Dorsal surface of carapace some times covered with ascidians.


Synonym (s)
Schizophrys aspera (Milne-Edwards, 1834)
(Senior synonym)
Maja (Dione) affinis De Haan, 1850
Schizophrys aspera Haswell, 1882
Schizophrys aspera Chopra and Das, 1937
Mithrax asper H. Milne-Edwards, 1834
Inachus bifidus Marion de Proce, 1822
Maja (Dione) affinis De Haan, 1839
Mithrax (Schizophrys) triangularis var. indica Richters, 1880
Mithrax affinis Brito Capello, 1871
Mithrax aspera H. Milne Edwards, 1834
Mithrax quadridentatus MacLeay, 1838
Mithrax spinifrons A. Milne-Edwards, 1867
Mithrax triangularis Kossmann, 1877
Schizophrys serratus White, 1847

Common Name (s)
• Spider Crab (English)
Economic Importance and Threats
Importance:  Commercial, Dangers
(Fisheries
Poisonous)

Ecology
Habitat:  Reef Associated, Rocky, Coastal

Biogeography


• Palk Bay INDIA
• Tamil Nadu, Gulf of Mannar (Lat: 8.5) (Long: 79) INDIA
• Lakshadweep, Kavaratti Island INDIA
• Lakshadweep (Lat: 10.5) (Long: 73) INDIA
• Maharashtra, Mumbai (Lat: 18.98) (Long: 72.83) INDIA
• Bay of Bengal, Northeast Coast INDIA
• Maharashtra, Mumbai INDIA
• Bay of Bengal
• Arabian Sea
• Karachi PAKISTAN
• Red Sea
• Persian Gulf
• SRI LANKA
• West Coast INDIA
• Lakshadweep INDIA
• Andaman and Nicobar Islands INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Tamil Nadu, Pamban INDIA
• Tamil Nadu, Gulf of Mannar, Manauli Island INDIA
• Maharashtra, Malvan (Lat: 16.08) (Long: 73.05) INDIA
• Karnataka INDIA (Record: 2001-2007)
• Andaman and Nicobar Islands, Car Nicobar INDIA
• East Coast INDIA
• Lakshadweep Islands (Lat: 8.28) (Long: 72.16) INDIA (Record: 01/1987-03/1987)
• Lakshadweep Islands (Lat: 11.68) (Long: 73.68) INDIA (Record: 01/1987-03/1987)
• Tamil Nadu, Kovalam INDIA
• Tamil Nadu INDIA

Literature Source(s)
  • Tikadar, BK; Daniel, A and Subbarao, NV (1986) Sea shore animals of Andaman and Nicobar Islands The Director, ZSI, Kolkatta 188 Available at - ZSI, Pune
  • 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
  • Mohan, JM (1978) Ecological studies on the fauna associated with economic seaweeds of south India-1. species composition, feeding habits and interrelationships Seaweed Research and Utilization Seaweed Research and Utilization Association, Tamil Nadu 3 17 Available at - NIO, Goa
  • Hussain, SM Brief report on biodiversity in the coastal areas of Pakistan p 113
  • Sankarankutty, C (1961) On some crabs (Decapoda, Brachyura) from the Laccadive Archipelago Journal of the Marine Biological Association of India Marine Biological Association of India 3(1-2) 120-136 Available at - NIO, RC, Kochi
  • Kensley, B (1981) On the Zoogeography of Southern Afrian Decapod Crustacea, with a distributional checklist of the species Smithsonian Contributions to Zoology Smithsonian Institution Press, Washington, D.C. 338 23377 Available at - NIO, RC Kochi
  • Griffin, DJG (1974) Spider Crabs (Crustacea: Brachyura: Majidae) from the International Indian Ocean Expedition, 1963-1964 Smithsonian Contributions to Zoology Smithsonian Institution Press, Washington, D.C. 182 12785 Available at - NIO, RC Kochi
  • Debelius, H (2001) Crustacea Guide of the world 11-318 Available at - CMFRI, Kochi
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • 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
  • 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
  • Sealifebase Available at - http://www.sealifebase.org/
  • Sankarankutty, C (1966) On Decapoda Brachyura from the Gulf of Mannar and Palk Bay Proceedings of the Symposium on Crustacea Marine Biological Association of India, Mandapam Camp Part I 347-362 Available at - http://eprints.cmfri.org.in/2394/1/Article_32.pdf
  • Parulekar, AH (1981) Marine fauna of Malvan, central west coast of India Mahasagar - Bulletin of National Institute of Oceanography NIO 14(1) 33-44 Available at - NIO, Goa
  • 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
  • Deb, M and Rao, GC (1993) A check-list of the brachyuran crabs (Crustacea: Decapoda)of Bay islands Journal Of The Andaman Science Association Andaman Science association, Port Blair 8(1-2) 25-34 Available at - NIO, Goa
  • 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
  • James, PSBR ; Thomas, PA ; Pillai, CSG and Achari Kumaraswamy, GP (1969) ´╗┐Catalogue of types and of sponges, corals, polychaetes, crabs and echinoderms in the reference collections of the Central Marine Fisheries Research Institute Bulletin of Central Marine Research Institute CMFRI, Cochin 7 1-66 Available at - http://eprints.cmfri.org.in/567/1/Bulletin_7.pdf
  • Kathirvel, M (2009) Marine poisonous brachyuran crabs of India Fishing chimes 29(9) 24-29 Available at - NIO, Goa
  • Rao, GS; Suseelan, C and Kathirvel, M (1989) Crustacean resources of the Lakshadweep islands Marine living resources of the union territory of Lakshadweep: An indicative survey with suggestions for development Bulletin of Central Marine Research Institute CMFRI 43 72-76 Available at - http://eprints.cmfri.org.in/8213/1/Bulletin_No_43.pdf
  • Sankarankutty, C (1962) On decapoda brachyura from the Andaman and Nicobar islands 3. Families: Calappidae. Leucosiidae, Parthenopidae, Maiidae, and Gecarcinidae Journal of the marine biological association of India. The marine biological association of India 4(1) 151-164 Available at - NIO, Goa
  • Radhakrisnan, EV; Kathirvel, M; Devarajan, K; Vijayakumaran, M; Poovannan, P; Thangavelu, R; Hameed, KS; Sankaralingam, S; Ramakrishnan, A and Thangar, VS (1989) An unusual congregation of organisms in the catches off Kovalam, Madras Marine fisheries information service ICAR 99 16-18 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:2011-10-03

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