Gyrineum natator   (Roding,  1798) (Sea Snail)
Organism information awaits expert curation
Class: Gastropoda

Image copyrights: Femorale

Size: Height 7.80 - 17.40 mm, maximum diameter 10.20 - 27.10 mm, minimum diameter 7.45 - 18.80 mm.

Color: Light brown.

Shell is small, solid, pyramidally convex, dorsoventrally compressed, coarse-looking with an elevated conical spire; whorls provided with a pair of varices forming a continuous crest like ridges near the suture; body whorl with a spiral row of small nodules followed by 4-5 rows of larger nodules which may coalesce with the smaller ones; crest of varices transversely ridged; aperture small and ovate; outer lip scalloped and with 7-8 denticles; columella with thin smooth callus with feebly oblique folds in the upper part; anterior siphonal canal short.

Synonym (s)
Biplex elegans Perry, 1811
Gyrineum natator Roding, 1798
Gyrineum robusta Fulton, 1936
Ranella olivator Morch, 1852
Ranella protubercularis Noetling, 1901
Ranella turberculata Broderip, 1833
Tritonium natator Roding, 1798
Ranella tuberculata Broderip, 1842
Gyrineum natator Mookherjee, 1985
Gyrineum natator var. robusta Fulton, 1936

Common Name (s)
Economic Importance and Threats
Importance:  Commercial
(For decoration)

Habitat:  Rocky,Sandy
Trophic Level:  Consumer
Prey:  Carnivores


• Orissa, Mahanadi Estuary (Lat: 20.32) (Long: 86.75) INDIA
• Tamil Nadu, Pamban (Lat: 9.25) (Long: 79.33) INDIA
• Tamil Nadu, Krusadai Island INDIA (Record: 1/5/1955)
• Tamil Nadu, Kanniyakumari INDIA (Record: 24/02/1968)
• Tamil Nadu, Pirappanvalasai INDIA (Record: 24/12/1979)
• Gujarat, Gulf of Khambhat INDIA
• Maharashtra, Mumbai INDIA
• Maharashtra, Deogad Coast INDIA
• Tamil Nadu, Pamban INDIA
• Tamil Nadu, Chennai INDIA
• Tamil Nadu, Adyar INDIA
• Andhra Pradesh, Vishakhapatnam INDIA
• Andaman and Nicobar Islands, Andamans INDIA
• Andaman and Nicobar Islands, Nicobars INDIA
• Persian Gulf
• Makran Coast PAKISTAN
• Red Sea
• Karachi PAKISTAN
• Maungmagan MYANMAR
• West Bengal, Ganga Sagar INDIA (Record: 03/09/1979, 27/01/1980)
• West Bengal, South 24 Parganas INDIA
• Andaman and Nicobar Islands INDIA
• Andhra Pradesh INDIA
• Maharashtra INDIA
• Tamil Nadu INDIA
• West Bengal, Digha Coast INDIA

Literature Source(s)
  • Subba Rao, NV and Dey, A (2000) Catalogue of marine molluscs of Andaman and Nicobar Islands Occasional paper no 187 Records of the Zoological Survey of India ZSI 1-323 Available at - NCL, Pune
  • Zoological Survey of India (Eds.) (1998) Fauna Of Mahanadi estuary, Orissa Estuarine ecosystem series no 3 ZSI, Kolkata 1-218 Available at - ZSI, Pune
  • OBIS Indo-Pacific molluscan database Available at -
  • Hussain, SM Brief report on biodiversity in the coastal areas of Pakistan p 113
  • Hosseinzadeh, H; Daghoghi, B and Rameshi, H (2001) Atlas of the Persian Gulf molluscs Oman sea fisheries research center, Oman 208 Available at - NIO, Goa
  • Eddie, H Hardy's internet guide to marine gastropods Available at -
  • Mookherjee, HP (1985) Contributions to the Molluscan fauna of India, Part III. Marine molluscs of the Coromandel coast, Palk Bay and Gulf of Mannar - Gastropoda: Mesogastropoda (Part-2) Records of the Zoological Survey of India. Occasional paper no. 75 ZSI, Calcutta 93 pp Available at - NIO, Goa
  • Subba Rao, NV; Dey, A and Barua, S (1992) Estuarine and marine molluscs Fauna of West Bengal Part 9 (State fauna series 3) ZSI, Calcutta 129-268 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Rao, GC (1991) Distribution of plants and animals on the rocky sea shores of Andaman and Nicobar Islands Journal of the Andaman Science Association Andaman Science Association, Port Blair 7(2) 30-42 Available at - NIO, Goa
  • Pati, SK; Rao, MV; Balaji, M and Pachu, AV (2011) Community Structure of fouling on a sunken vessel from Visakhapatnam harbour, east coast of India Journal of the Marine Biological Association of India The Marine Biological Association of India 53(1) 14-20 Available at - NIO,Goa
  • Dey, M and Mitra, A (2005) Molluscan community around Digha coast, West Bengal, India Journal of Environment and Sociobiology Social Environmental and Biological Association, Kolkata, India 2(1&2) 43-47 Available at - NIO, Goa

Page last updated on:2011-12-14

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