Charybdis (Charybdis) natator (Herbst, 1794)

Gokul, A., 2017, Taxonomy and ecology of brachyuran crabs in Sunderbans, Records of the Zoological Survey of India 117 (2), pp. 131-139 : 135

6. Charybdis (Charybdis) natator (Herbst, 1794)

1794. Cancer natator Herbst, Krabben und Krebse , 2: 156, pl. 40, 1899. Charybdis (Goniosoma) natator, Alcock, J. Asiat. Soc. Bengal ,

68 (2): 61.

2005. Charybdis (Charybdis) natator, Dev Roy and Bhadra, Fauna of Andhra Pradesh, State Fauna Series, 5: (Part 5): 435.

Materials: Total one example. KN 1562, Coll. A. Gokul, 15.3.10, Bali Island, 01 ex .

Characters: Carapace broad, convex and densely in addition to the usual transverse ridges of gastric and branchial regions, two short but prominent ridges present side by side on the cardiac region, other two ridges shorter than the preceeding pair also present just behind the inner ends of the branchial ridge. Front cut into six subequal teeth with their tips bluntly rounded. First antero-lateral tooth truncated, last one not much enlarged. Chelipeds marked with transverse squamiform tubercles, markings more prominent on palm. Abdomen consisting of seven separate segments.

Distribution:

Kerala, Andhra Pradesh, Tamil Nadu, Pondicherry. Elsewhere: South and East coast of Africa, Madagascar, Red Sea, Sri Lanka, Malay Archipelago, Singapore, Philippines, Hong Kong, South China Sea, Taiwan, Japan and Australia.