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Neverita didyma

  (Redirected from Natica chemnitzi)

Neverita didyma, common name the bladder moon snail or moon shell, is a species of predatory sea snail, a marine gastropod mollusk in the family Naticidae, the moon snails.[1]

Neverita didyma
Neverita didyma.jpg
A live and active individual of Neverita didyma, viewed from above
Neverita didyma 01.JPG
Five views of a shell of Neverita didyma
Scientific classification
N. didyma
Binomial name
Neverita didyma
(Röding, 1798)
  • Albula didyma Röding, 1798
  • Glossaulax didyma (Röding, 1798)
  • Natica ampla Iwakawa, 1900
  • Natica chemnitzii Récluz in Chenu, 1843 (doubtful synonym)
  • Natica didyma (Röding, 1798)
  • Natica glaucina Lamarck, J.B.P.A. de, 1822
  • Natica lamarckiana Reeve, L.A., 1855
  • Natica petiveriana Récluz, C. in Chenu, J.C., 1843
  • Natica problematica Reeve, L.A., 1855
  • Natica robusta Dunker, R.W., 1860
  • Neverita bicolor Philippi, 1849
  • Neverita didyma (Röding, 1798)
  • Polinices didyma (Röding, 1798)
  • Polinices ephebus Hedley, 1915
  • Polinices papyracea Busch, von dem in Philippi, R.A., 1845
  • Polinices (Glossaulax) aulacoglossa Pilsbry, H.A. & E.G. Vanatta, 1908, "1909"
  • Polinices (Glossaulax) ephebus Hedley, C., 1915
Egg mass


  • Neverita didyma ampla (Philippi, 1849)
  • Neverita didyma hayashii (Azuma, 1961)
  • Neverita didyma hosoyai (Kira, 1959)


The size of an adult shell of this species varies between 20 mm and 90 mm. Like all naticids, this species is a carnivore and a predator.


This marine species is found in the Indian Ocean off the coasts of Madagascar, Mozambique and South Africa.

Culinary useEdit

Golbaengi-muchim (moon snail salad)

In Korean cuisine, moon snails are called golbaengi (골뱅이) and eaten as golbaengi-muchim (moon snail salad).


  1. ^ a b Neverita didyma (Röding, 1798) . WoRMS (2009). Neverita didyma (Röding, 1798) 5. Accessed through the World Register of Marine Species at on 14 April 2011 .
  • Dautzenberg, Ph. (1929). Mollusques testacés marins de Madagascar. Faune des Colonies Francaises, Tome III
  • MacNae, W. & M. Kalk (eds) (1958). A natural history of Inhaca Island, Mozambique. Witwatersrand Univ. Press, Johannesburg. I-iv, 163 pp.
  • Branch, G.M. et al. (2002). Two Oceans. 5th impression. David Philip, Cate Town & Johannesburg
  • Kilburn, R.N. & Rippey, E. (1982) Sea Shells of Southern Africa. Macmillan South Africa, Johannesburg, xi + 249 pp. page(s): 71
  • Steyn, D.G. & Lussi, M. (1998) Marine Shells of South Africa. An Illustrated Collector’s Guide to Beached Shells. Ekogilde Publishers, Hartebeespoort, South Africa, ii + 264 pp. page(s): 50
  • Hollman M. (2008) Naticidae. In Poppe G.T. (ed.) Philippine marine mollusks, vol. 1: 482-501, pls 186-195. Hackenheim: Conchbooks.
  • Torigoe K. & Inaba A. (2011) Revision on the classification of Recent Naticidae. Bulletin of the Nishinomiya Shell Museum 7: 133 + 15 pp., 4 pls

External linksEdit

  • "Polinices (Glossaulax) didyma". Retrieved 14 April 2011.
  • Seashells of NSW info