Tonna fasciata [Status Unaccepted]   (Martini,  1777) (Sea Snail)
Organism information awaits expert curation
Class: Gastropoda

Color: Shell white, marked with four, broad, widely separated brownish spiral bands which fade out before reaching the edge of the outer lip.

Shell moderately thin, with a large ovately inflatd body whorl and a short conical spire. The sutures are slightly sunk in narrow, impressed grooves. The surface is ornamented with numerous broad, somewhat flattened, close-set ribs separated by flat, smooth interspaces of which the uppermost one in each whorl is broader than the rest. The columella is slightly twisted and the base of the shell strongly constricted and produced. The umbilicus is very much reduced.

Synonym (s)

Common Name (s)
• Banded Tun
Economic Importance and Threats



• Orissa, Dhamra Estuary INDIA
• Tamil Nadu, Pamban Island (Lat: 9.25) (Long: 79.33) INDIA
• Tamil Nadu, Krusadai Island (Lat: 9.23) (Long: 79.22) INDIA
• Tamil Nadu, Pamban (Lat: 9.29) (Long: 79.21) INDIA

Literature Source(s)
  • Apte,D (1998) The book of Indian shells Oxford University Press 115
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Dutta, SK (2007) Biodiversity assessment of Dhamra port site and surrounding areas, Orissa Greenpeace India 4-38 Available at -
  • Satyamurti, ST (1952) The Mollusca of Krusadai island in the Gulf of Mannar I- Amphineura and Gastropoda Bulletin of the Madras Government 1(2) 265 pp Available at - NIO, Goa

Page last updated on:2013-02-13

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