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Scientific Name: Carcinoscorpius rotundicauda (Latreille, 1802)
English Name: Mangrove Horseshoe Crab, Sundarban Mangrove Horseshoe Crab.
Local/Bangla Name: Raj Kakra (রাজ কাঁকড়া), Sagar Kakra (সাগর কাঁকড়া).
Labcode: CC-C1901SB-10
Photo: ABR Lab
Classification:
Kingdom: Animalia
Phylum: Arthropoda
Class: Merostomata
Order: Xiphosurida
Family: Limulidae
Description:
It has a three-part body: a rounded head (prosoma), a midsection (opisthosoma), and a tail spike (telson). This crab has two large eyes on either side of its head (compound eyes) and three more eyes on its carapace – two in the middle (median eyes) and one near the rear (endoparietal eye). There are also two smaller eyes on the underside near its mouth (ventral eyes). It has twelve appendages (six pairs). It uses flat, plate-like organs (book gills) located behind its legs for both swimming and breathing.This crab is dark green or greenish black in color. The circular shell is brownish. The crab can be identified by its shorter spines on the side of the body. The tail is circular in cross-section near where it joins the body. It does not have a groove on the underside or spines on the upper side. Horseshoe crab is actually a species under Phylum Arthropoda but it does not belong to Subphylum Crustacea.
Habitat & Distribution in Bangladesh:
Chittagong, Cox’s Bazar, Teknaf and St. Martin’s Islands and western part of
Bangladesh.
Environment:
Marine (Benthopelagic), Brackish.
Other References:
Other DNA Barcodes & Nucleutide Sequences
IUCN conservation status:
Other Information
