Pseudodromia integrifrons [Status Unaccepted]   Henderson  1893 (Crab)
Organism information awaits expert curation
Class: Malacostraca

Length of carapace: 7.75 mm

Breadth of carapace: 5.75 mm

Color of the carapace greyish orange, the denuded legs and fingers of the chelae with orange and white stripes.

The carapace is smooth and polished, subpentagonal, regularly convex both transversely as well as longitudinally, and is very sparingly pubescent. The cervical and branchio-cardiac grooves are well-marked, the latter indenting the lateral margin of the carapace behind its middle. The lateral borders are long and entire, somewhat ill-defined, parallel for more than half their posterior extent, then abruptly turned inward and downward to end in a down-turned, simple, triangular acute rostrum. The subhepatic region has two slight subparallel sulci, the upper of which is very short and contains a fissure passing back from the poorly marked external orbit angle. The entire border of the carapace is fringed with silky hairs, which are longer and more dense between the orbits and are very dense at the rostrum
The eyes and antennules fold into common orbito-antennulary pits. The eyes are somewhat elongated, the lower orbital margin being formed simply by the antennal peduncle. The antennal flagellum consist of about 25 segments, the second segment being twice as long as wide. There are eight gills and three epipodites.
The chelipeds and legs are covered with a short pubescence, which is most dense on the former. The chelipeds, with the exception of the fingers, are devoid of tubercles or teeth; the hand is only slightly dilated. The movable finger has a few small teeth proximally and two larger ones at the tip. The thumb has three enlarged teeth. The tip of the finger shuts into a notch in the tip of the thumb, the last tooth of the latter being double-pronged. Both the fingers are slightly hollowed at the tips, and gape proximally.
The abdomen consists of seven separate segments in both sexes. There are no lateral platelets. The sternum of the female is traversed longitudinally by a pair of grooves that end in tubercles at the level of the bases of the first pair of legs.
The crab is protected by a colonial Ascidian.
The male is much smaller than the female, being about two-third the length of the latter. It resembles the female in all its characters, except that the lateral borders of the carapace are more thickly fringed with hair, and the chelipeds are comparatively slightly stouter.
The abdomen is narrower than in the female, and consist of seven segments. The genital ducts of the male open on the bases of the last pair of legs. The male has the usual two pairs of copulatory abdominal appendages. The first is stout, with a thin tip bearing a brush of setae. The second is thin, with a globular tip, and has three plumose hair near its middle.

The ova are large, 1.0 mm X 0.8 mm.

Synonym (s)
Psudodromia integrifrons
Pseudodromia caphyraeformis
Pseudodromia integrifrons Henderson 1893

Common Name (s)
Economic Importance and Threats

Habitat:  Coastal


• Gujarat, Gulf of Kachchh (Lat: 22.6) (Long: 69.5) INDIA
• Maharashtra, Mumbai (Lat: 18.98) (Long: 72.83) INDIA
• Tamil Nadu, Tuticorin (Lat: 8.78) (Long: 78.13) INDIA
• Gujarat, Okha INDIA
• Tamil Nadu, Tuticorin INDIA
• Tamil Nadu, Gulf of Mannar INDIA (Record: 2008)
• Gujarat, Gulf of Kachchh INDIA
• Tamil Nadu, Mandapam INDIA (Record: 1966)
• Tamil Nadu INDIA

Literature Source(s)
  • Tikader, BK (1982) The fauna of India (spiders: Araneae) ZSI, Calcutta 2(part 1-2) 1-536 Available at - NCL, Pune
  • Subba Rao, NV and Sastry, DRK (2005) Fauna of Marine National Park, Gulf of Kuchchh (Gujarat) ZSI 79 pp Available at - NCL, Pune
  • 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
  • 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 -
  • Jeyabaskaran, R; Wafar, S and Wafar, M (2002) CD on Brachyuran Crabs of West Coast, India Available at -
  • Dr. Ramesh, R; Dr. Nammalwar, P and Dr. Gowri, VS (2008) Database on coastal information of Tamil Nadu Report Submitted to Environmental Information System (ENVIS) Centre, Department of Environment, Government of Tamil Nadu Institute for Ocean Management, Anna University, Chennai, Tamil Nadu. Available at -
  • 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 -
  • 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:2011-09-28

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