Neverita didyma

Neverita didyma

A live and active individual of Neverita didyma, viewed from above

Five views of a shell of Neverita didyma
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda clade Hypsogastropoda clade Littorinimorpha
Superfamily:	Naticoidea
Family:	Naticidae
Genus:	Neverita
Species:	N. didyma
Binomial name
*Neverita didyma* (Röding, 1798)
Synonyms^[1]
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

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

Egg mass

Subspecies

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.

1 2 Neverita didyma (Röding, 1798) . WoRMS (2009). Neverita didyma (Röding, 1798) 5. Accessed through the World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=568320 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

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