Conus rattus   Hwass in Bruguiere,  1792 (Sea Snail)
Organism information awaits expert curation
Class: Gastropoda

Size: 30-63 mm

Color: Ground colour bluish white to greyish blue. Last whorl overlaid with various shades of olive, brown or orangish brown, leaving a broad interrrupted spiral ground-colour band below shoulder and another obsolete to broad one at centre.

Shell is thick and smooth, moderately small to moderately large, moderately solid to solid. Last whorl conical or ventricosely conical to broadly and sometimes broadly and ventricosely conical; outline variably convex at adapical third to three-fourths, left side concave below. Shoulder angulate. Spire of low to moderate height, outline slightly convex to concave. Larval shell of 3 or more whorles, maximum diameter 0.6-0.8 mm. Teleoconch sutural ramps flat, with 2-3 increasing to 3-6 spiral grooves. Last whorl with variably prominent fine spiral ribs at base, gradually obsolete adapically.

Synonym (s)

Common Name (s)
• Bluish Cone (English)
Economic Importance and Threats

Habitat:  Reef Associated
Trophic Level:  Secondary Consumer
Prey:  Feeds exclusively on polychaete worms within its entire range, usually preferring Eunicidae to Nereidae


• Tamil Nadu, Parangipettai Coast (Lat: 11.48) (Long: 79.77) INDIA
• Tamil Nadu, Krusadai Island INDIA
• Tamil Nadu, Keezha Karai INDIA
• Andaman and Nicobar Islands, Andamans INDIA
• Andaman and Nicobar Islands, Neil Island (Lat: 11.83) (Long: 93.05) INDIA
• Andaman and Nicobar Islands, Camorta INDIA
• Andaman and Nicobar Islands, Car Nicobar, Malacca Bay INDIA

Literature Source(s)
  • (2002) Lakshadweep Islands biodiversity strategy and action plan (Version: 3)
  • Subba Rao, NV (2003) Indian seashells Records of the Zoological Survey of India ZSI, Kolkata (Part 1) 416 pp Available at - NCL, Pune
  • 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
  • OBIS Indo-Pacific molluscan database Available at -
  • Leviten, PJ and Kohn, AJ (1980) Microhabitat resource use, activity patterns, and episodic catastrophe: Conus on tropical intertidal reef rock benches Ecological Monographs 50(1) 55-75 Available at - Zoological Records
  • Gulbin, VV and Evseev, GA (1997) Intertidal Prosobranch Gastropods of Vietnam Galaxea Ryukyus University, Japan 13(2) 157-166 Available at - NIO, RC Kochi
  • Allen, GR (2005) Reef fishes of northwestern Madagascar RAP Bulletin of Biological Assessment 31 39-48
  • Kasinathan, R; Singarawadivelan, G and Saminathan, R (1997) Venomous cone snails of southeast coast of India 1 Available at - NIO, Goa
  • Kohn, AJ The Conus Biodiversity website Available at -
  • Mayhew, R Schooner specimen shells Available at -

Page last updated on:2012-10-09

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