Cerithidea (Cerithidea) obtusa   (Lamarck,  1822) (Sea Snail)
Organism information awaits expert curation
Class: Gastropoda
Order:[unassigned] Caenogastropoda

Size: Length 34.05-60 mm; diameter 19.25-24.74 mm; height of spire 22.68-30.85 mm.

Color: Pale pinkish, lip and columella white, aperture light brown and with dark brown bands; operculum dark brown; Head bears a pair of tentacles with alternating broad black and red bands.

Shell elongate and light weight; whorls 7 to 8; apex usually eroded(decollated); body whorl as broad as high; aperture strongly spherical and wide with expanded and recurved outer lip; columella weak; basal end slightly twisted, a short siphonal canal; sculptured with about 6 to 7 spiral ridges and about 8 to 10 axial ribs on each whorl. Operculum circular with central nucleus and concentric growth lines.

Synonym (s)
Cerithium obtusum Lamarck, 1822
Cerithidea obtusa Subba Rao and Mookherjee, 1975

Common Name (s)
Economic Importance and Threats

Habitat:  Estuarine, Coastal


• Andhra Pradesh, Godavari Estuary (Lat: 16.63) (Long: 82.3) INDIA
• Andaman and Nicobar Islands, Nicobar Island (Lat: 7) (Long: 93) INDIA
• Orissa, Mahanadi Estuary (Lat: 20.32) (Long: 86.75) INDIA
• Tamil Nadu, Pichavaram Mangrove (Lat: 11.42) (Long: 79.8) INDIA
• Orissa, Kasafal INDIA (Record: 22/01/1972)
• Orissa, Gopalpur Backwaters INDIA (Record: 21/04/1948)
• West Bengal, Sundarbans INDIA
• Andaman and Nicobar Islands, Nicobars 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
  • 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
  • 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
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org

Page last updated on:2010-06-14

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