Polinices (Glossaulax) didyma   (Roeding,  1798) (Sea Snail)
Organism information awaits expert curation
Class: Gastropoda

Size: Length 10.48-58.2 mm; diameter 11.45-50.3 mm.

Color: Blue-grey or fawn, with a narrow orange subsutural band and sometimes faint spiral lines around the body whorl, parietal wall and callus brown, umbilicus and base white, aperture brown.

Depressed-ovate, spire low, umbilicus deep, with a small spiral funicle, both almost closed by a deeply grooved, thick, tongue-like reflection of the parietal callus at the posterior end of the columella.

Synonym (s)
Albula didyma Roeding, 1798
Natica chemnitzii Recluz, 1843
Natica lamarckiana Reeve, 1855
Neverita bicolor Philippi, 1849
Polinices (Glossaulax) didyma Cernohorsky, 1972
Natica didyma Crichton, 1941
Polinices (Glossaulax) didyma Mookherjee, 1985

Common Name (s)
Economic Importance and Threats

Habitat:  Muddy, Coastal


• Orissa, Mahanadi Estuary (Lat: 20.32) (Long: 86.75) INDIA
• Maharashtra, Mumbai (Lat: 18.98) (Long: 72.83) INDIA
• Gujarat, Pirotan Island (Lat: 22.62) (Long: 69.97) INDIA
• Gujarat, Gulf of Kachchh (Lat: 22.6) (Long: 69.5) INDIA
• Tamil Nadu, Parangipettai Coast INDIA (Record: 21/01/1957)
• Tamil Nadu, Agasthiampalli INDIA (Record: 17/02/1968)
• Tamil Nadu, Tuticorin INDIA (Record: 25/02/1968)
• Tamil Nadu, Sethubabachatram INDIA (Record: 14/01/1978)
• Tamil Nadu, Kilakarai INDIA (Record: 18/01/1978)
• Maharashtra, Mumbai INDIA
• Tamil Nadu, Pamban INDIA
• Tamil Nadu, Shingle Island INDIA
• Tamil Nadu, Chennai INDIA (Record: 1985, 1991)
• Makran Coast PAKISTAN
• Karachi PAKISTAN
• Orissa, Baleshwar INDIA (Record: 03/11/1962-06/11/1962)
• Orissa, Chandipur INDIA (Record: 30/11/1984)
• Orissa, Puri INDIA (Record: 15/11/1962)
• West Bengal, Digha INDIA
• Tamil Nadu, Krusadai Island INDIA
• Gujarat, Pirotan Island INDIA
• Tamil Nadu, Kundugal Point INDIA

Literature Source(s)
  • Subba Rao, NV (2003) Indian seashells Records of the Zoological Survey of India ZSI, Kolkata (Part 1) 416 pp Available at - NCL, Pune
  • (2001) Fauna of Godavari estuary, Andhra Pradesh Estuarine ecosystem series 4 ZSI, Kolkata 1-166 Available at - ZSI, 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 - http://clade.ansp.org/obis/find_mollusk.html
  • Ramakrishna; Sarkar, J and Talukdar, S (2003) Marine invertebrates of Digha coast and some recomendations on their conservation Records of the Zoological Survey of India ZSI, Kolkata 101(3-4) 1 Available at - NCL, Pune
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Wilson, B; Wilson, C and Baker, P (1993) Australian marine shells 1 1-408 Available at - NIO, Goa
  • www.seashellhub.com Available at - http://www.seashellhub.com/
  • Rao, NVS; Rao, KVS and Maitra, S (1991) Marine molluscs State fauna series 1: Fauna of Orissa Zoological Survey of India, Calcutta Part 3 1-175 Available at - NIO, Goa

Page last updated on:2010-07-22

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