Pseudoporcellanella manoliensis   Sankarankutty,  1961 (Crab)
Organism information awaits expert curation
Class: Malacostraca

Color: milky white with transverse brownish bands on the carapace and the chelipeds. The carapace has two transverse bands near the anterior end, the first is larger than the second and runs between the orbits, and the second band immediately follows the first. The merus and the carpus of the cheliped have one transverse band each ; whereas the manus has two, the distal band widening towards the outer border of the segment.

It has an elongated carapace, the breadth of which is about 2/5 its length. The carapace is highly convex from side to side and its dorsal profile is straight. The dorsal surface of the carapace is traversed by transverse striae, which are more prominent towards the anterior end and the sides. The front is trilobed, the median lobe of which is conical with a subacute tip and is much larger than the lateral lobes. The lateral lobes have their acute tips incurved. The borders of all the frontal lobes are unarmed. The outer orbital corner of the carapace has a triangular projection pointing antero laterally, behind which the lateral borders of the carapace diverge upto about f the length of the carapace, converging again. The posterior border of the carapace is concave. The basal antennular joint is suboval in shape and has a flat ventral side, the antennular flagellum being attached on the inner side. The antenna is removed from the orbit and is located in a sinus surrounded by three pointed triangular projections; the outer orbital projection forming the dorsal, the pterygostomial projection forming the ventral and a similar spiny projection anterior to the antenna forming partly the lower border of the eye-peduncle. The antennal peduncle is formed of three segments, the second being the largest and the antennal flagellum is composed of only five segments. In the dorsal view of the animal, a few distal segments of the antenna alone are visible. The ischium is the broadest segment of the external maxilliped and has a small lobe at the distal end of the outer side. The merus, when measured along the outer border, is the longest segment of the maxilliped. The chelipeds are short, stout and subequal. The carpus is a short segment and is slightly broader than long. The manus is flattened from side to side and is the largest segment in the cheliped, its length along the upper border is same as that of dactylus. The fingers are irregularly toothed along their cutting edges; the tips of the fingers are hooked and cross each other, the tip of the dactylus lying inside the tip of the fixed finger. The ventral border of the manus from the proximal end to the tip of the fixed finger has a fringe of bipinnate hairs, the latter increasing in numbers towards the tip. The dorsal border of the dactylus also has a similar fringe of hairs and they are more concentrated at the tip. The first three ambulatory legs are stout and of the same size. The merus is longer than the propodus, when measured along the outer border. The propodus has no spinule at the distal end of the ventral side. The dactylus is curved and carries three spinules, the middle one being the largest and the proximal one the smallest. The fourth leg is reduced as in the other porcellanids. The abdomen consists of six segments, the second being the broadest. The telson is much longer than broad and has a central triangular plate on either side of which is a transverse division.

Synonym (s)

Common Name (s)
Economic Importance and Threats



• Tamil Nadu, Manoli Island INDIA (Depth: 6 mts)
• Tamil Nadu, Manoli Island INDIA (Record: 15/10/1960)

Literature Source(s)
  • Tikader, BK (1982) The fauna of India (spiders: Araneae) ZSI, Calcutta 2(part 1-2) 1-536 Available at - NCL, Pune
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Sankarankutty, C (1961) On a new genus of Porcellanidae ( Crustacea - Anomura) Journal of the Marine Biological Association of India Marine Biological Association of India 3(1-2) 92-95 Available at -
  • 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 -

Page last updated on:2011-03-11

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