Turritella acutangula   (Linnaeus,  1758) (Sea Snail)
Organism information awaits expert curation
Class: Gastropoda

Size: 63.10-87.10 mm.

Color: The shell is pale yellowish brown for the most part, but the upper halves of the whorls generally tend to be darker.

The length of the shell is fully about three times the maximum width of the body whorl. The whorls are markedly bulged in the middle, and the surface is finely striated spirally, but about the middle of each whorl there are two more or less strongly raised spiral ridges, and very often there may also be one or two additional raised striae above and below them; these secondary striae, though much less pronounced than the strong median ridges, still be readily distinguished from the finer and more numerous spiral striae. The columellar margin at the aperture is covered with a whitish polished callus deposit.

Synonym (s)
Turritella duplicata Lamarck, 1843
Turbo acutangulus Linnaeus, 1758
Turritella duplicata Lamarck, 1843
Turritella duplicata Reeve, 1849
Turritella duplicata Hornell, 1921
Turritella duplicata Crichton, 1941
Turritella acutangula Gravely, 1942
Turritella acutangula Rajagopal and Mookherjee, 1982

Common Name (s)
Economic Importance and Threats

Habitat:  Reef Associated, Estuarine, Sandy


• Kerala, Vazhakala (Lat: 10.03) (Long: 76.28) INDIA
• Tamil Nadu, Parangipettai Coast INDIA
• Orissa, Chilika Lake INDIA (Record: 1985)
• Tamil Nadu, Gulf of Mannar INDIA
• Orissa, Paradwip INDIA (Record: 31/01/1972)
• Orissa, Konark INDIA (Record: 19/11/1962)
• Orissa, Chandrabhaga INDIA (Record: 11/02/1972)
• Orissa, Puri INDIA (Record: 09/02/1972)
• Orissa, Ganjam Coast INDIA
• Orissa, Chhatrapur INDIA (Record: 24/11/1962)
• Tamil Nadu, Chennai INDIA
• Tamil Nadu, Mandapam INDIA
• Tamil Nadu, Rameswaram INDIA
• Tamil Nadu, Kodikkarai INDIA
• Tamil Nadu, Tharangambadi INDIA
• Pondicherry, Karaikal INDIA
• Maharashtra, Devgarh INDIA
• Maharashtra, Mumbai INDIA
• Gujarat, Gulf of Kachchh INDIA
• Orissa, Talburai INDIA
• Gujarat, Okha Reef INDIA
• Gujarat, Hanumandandi Reef INDIA
• Gujarat, Sangi-Kharo Creek (Lat: 23.28) (Long: 68.51) INDIA (Record: 1999-2000)
• Gujarat, Medi-Sinthodi Creek (Lat: 23.45) (Long: 68.48) INDIA (Record: 1999-2000)
• Tamil Nadu, Pamban INDIA
• Palk Bay (Lat: 9.28) (Long: 79.13) INDIA (Record: 04/1994-09/1994)
• Tamil Nadu, Edaiyur Backwaters (Lat: 12.56) (Long: 80.18) INDIA (Record: 04/1988-03/1989)

Literature Source(s)
  • Pillai, CSG; Appukuttan, KK and Kaladharan, P (1999) Occurrence of submerged Pleistocene stony corals and marine molluscs at Vazhakala near Cochin and their significance on sea level changes Indian Journal of Marine Sciences CSIR, New Delhi 28 96-98 Available at - NIO, RC Kochi
  • Fernando, AS and Fernando, OJ (2002) A field guide to the common invertebrates of the east coast of India Centre of Advanced Study in Marine Biology 1-258 Available at - NIO, RC Kochi
  • Rajagopal, S; Khan, SA; Srinivasan, M and Shanmugam, A (1998) Gastropods of Parangipettai coast Annamalai University 38 pp 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
  • Rao, NVS; Rao, KVS and Manna, RN (1995) Mollusca Wetland ecosystem series 1: Fauna of Chilka lake ZSI, Calcutta 391-468 Available at - NIO, Goa
  • Marine Biological Station, Chennai, Tamil Nadu (2003) Checklist of marine fauna of Tamil Nadu Department of Environment, Government of Tamil Nadu Available at - http://tnenvis.nic.in
  • 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
  • Gopalakrishnan, P (1970) Some observations on the shore ecology of the Okha Coast Journal of the Marine Biological Association of India Cochin, India 120(1&2) 15-34 Available at - NIO, Goa
  • Saravanakumar, A; Serebiah, JS; Thivakaran, GA and Rajkumar, M (2007) Benthic macrofaunal assemblage in the arid zone mangroves of Gulf of Kachchh – Gujarat Journal of Ocean University of China Ocean University of China 6(3) 303 -309 Available at - http://dx.doi.org/10.1007/s11802-007-0303-3
  • Sundaram, KS; Sarvesan, R; Mohamed, KH and Shanbhogue, SL (1969) Catalogue of molluscs, prawns, stomatopods and marine algae in the reference collections of the central marine fisheries research institute Bulletin Of Central Marine Fisheries Research Institute CMFRI, Cochin 9 1-52 Available at - http://eprints.cmfri.org.in/570/1/Bulletin_9.pdf
  • Ramesh, DA; Jeyabaskaran, R and Pandian, ALP (1996) Gastropods and bivalves associated with reef building corals, Palk Bay, southeastern India Phuket Marine Biological Center Special Publication Phuket marine biology Center 16 257-260 Available at - http://eprints.cmfri.org.in/7666/1/669._Asi.pdf
  • Rajagopal, S; Azariah, J and Nair, KVK (1990) Ecology of fouling organisms in Edaiyur backwaters, Kalpakkam Mahasagar- Bulletin of the National Institute of Oceanography NIO, Goa 23 (1) 29-41 Available at - ijs.nio.org/index.php/msagar/article/download/2417/2392

Page last updated on:2011-07-01

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