Thais tuberosa   Roeding,  1798 (Sea Snail)
Organism information awaits expert curation
Class: Gastropoda

Image copyrights: G. & Ph. Poppe

Size: Length 37.18-50.95 mm; diameter 27.78-48.15 mm; length of aperture 24.95-32.90 mm; length of spire 15.50-23.10 mm.

Color: White with 3-4 black bands, aperture creamy white, outer lip with 3-4 black blotches, columella mottled with two dark brown zones, lirae reddish brown.

Shell oblong, heavy, thick, spire elevated, consists of 4 whorls, spinose, body whorl large with 3 rows of thick blunt spines, gradually decreases in size. Aperture ovate, outer lip margin crenulate, interior lirate, columella smooth, callose with 3-4 light plications anteriorly. Anal sulcus short, deep inverted ā€˜Vā€™ shaped, canal short, broadly open, sculpture consists of broad, scaly spiral cords in between spiral rows.

This closely resembles Thais armigera but differs in having short spire and absence of denticles on interior of outer lip, dark brown blotches on apertural margin and reddish brown lirations. It also closely resembles Thais hippocastanum but differs from the latter in the absence of denticles on the interior of outer lip and having more lirations in the aperture.

Synonym (s)
Purpura tuberosa Roeding, 1798
Purpura pica Reeve, 1846
Purpura pica Smith, 1906
Thais tuberosa Cernohorsky, 1967
Thais tuberosa Surya Rao and Subba Rao, 1991
Mancinella tuberosa (Roding, 1798)
(Senior synonym)
Thais pica (Blainville, 1832)
(Junior synonym)

Common Name (s)
• Tuberose Rock Shell (English)
Economic Importance and Threats

Habitat:  Reef Associated


• Andaman and Nicobar Islands, Andamans INDIA
• Andaman and Nicobar Islands, Rangachang INDIA
• Andaman and Nicobar Islands, Port Blair INDIA
• Andaman and Nicobar Islands, Neill Island INDIA
• Andaman and Nicobar Islands, Arong INDIA
• Tamil Nadu, Krusadai Island, Galaxea Reef INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Lakshadweep INDIA
• Andaman and Nicobar Islands INDIA
• Andaman and Nicobar Islands, Andaman (Lat: 10) (Long: 93) INDIA
• Andaman and Nicobar Islands, Port Blair (Lat: 11.67) (Long: 92.75) INDIA
• Andaman and Nicobar Islands, Car Nicobar (Lat: 9.17) (Long: 92.78) INDIA

Literature Source(s)
  • Subba Rao, NV and Surya Rao, KV (1993) Contribution to the knowledge of Indian marine molluscs: Pt. 3. Family: Muricidae Occasional paper no 153 Records of the Zoological Survey of India ZSI, Kolkata 133 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Sealifebase Available at -
  • 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

Page last updated on:2012-07-11

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