Neptunea is a genus of large sea snails, marine gastropod mollusks in the subfamily Neptuneinae of the family Buccinidae, the true whelks.
According to the World Register of Marine Species (WoRMS), the following species with valid names are included within the genus Neptunea:
Neptunea acutispiralis
Neptunea alabaster
Neptunea alexeyevi
Neptunea amianta
Neptunea angulata
Neptunea antarctocostata
Neptunea antiqua
Neptunea arthritica
Neptunea aurigena
Neptunea behringiana
Neptunea borealis
Neptunea bulbacea
Neptunea communis
Neptunea constricta
Neptunea contraria
Neptunea convexa
Neptunea costaria
Neptunea cumingii
Neptunea cuspidis
Neptunea cybaea
Neptunea decemcostata
Neptunea denselirata
Neptunea despecta
Neptunea elegantula
Neptunea ennae
Neptunea eulimata
Neptunea excelsior
Neptunea fitchi
Neptunea flatteryensis
Neptunea frater
Neptunea fukueae
Neptunea gulbini
Neptunea gyroscopoides
Neptunea hedychra
Neptunea heros
Neptunea hesperica
Neptunea hiberna
Neptunea humboldtiana
Neptunea insularis
Neptunea intersculpta
Neptunea inversa
Neptunea ithia
Neptunea jagudinae
Neptunea kuroshio
Neptunea laeva
Neptunea lamellosa
Neptunea laticostata
Neptunea lyrata
Neptunea lyratodespecta
Neptunea magnanimita
Neptunea mcleani
Neptunea meridionalis
Neptunea middendorffiana
Neptunea mikawaensis
Neptunea multistriata
Neptunea nivea
Neptunea nodositella
Neptunea occaecata
Neptunea ochotensis
Neptunea oncodes
Neptunea phoenicea
Neptunea polycostata
Neptunea pribiloffensis
Neptunea purpurea
Neptunea robusta
Neptunea rugosa
Neptunea smirnia
Neptunea stilesi
Neptunea stonei
Neptunea subdilatata
Neptunea tabulata
Neptunea tuberculata
Neptunea umbratica
Neptunea varicifera
Neptunea ventricosa
Neptunea vinlandica
Neptunea vinosa
Neptunea vladivostokensis
Species brought into synonymy
Neptunea (Trophonopsis): synonym of Trophonopsis Bucquoy, Dautzenberg & Dollfus, 1882
Neptunea (Trophonopsis) lasia Dall, 1919: synonym of Scabrotrophon lasius (Dall, 1919)
Neptunea apolyonis Dall, 1919: synonym of Boreotrophon apolyonis (Dall, 1919)
Neptunea arthritica (Bernardi, 1857): synonym of Barbitonia arthritica (Valenciennes, 1858)
Neptunea beringi (Dall, 1902): synonym of Boreotrophon clathratus (Linnaeus, 1767)
Neptunea berniciensis (King, 1846): synonym of Troschelia berniciensis (King, 1846)
Neptunea bonaespei Barnard, 1963: synonym of Buccipagoda bonaespei (Barnard, 1963)
Neptunea brevicauda (Deshayes, 1832): synonym of Aulacofusus brevicauda (Deshayes, 1832)
Neptunea caelata Verrill, 1880: synonym of Retimohnia caelata (Verrill & Smith in Verrill, 1880)
Neptunea callicerata Dall, 1919: synonym of Boreotrophon avalonensis Dall, 1902
Neptunea cincta Link, 1807: synonym of Filifusus filamentosus (Röding, 1798)
Neptunea dalli Friele, 1882: synonym of Granulifusus dalli (Watson, 1882)
Neptunea danielsseni (Friele, 1879): synonym of Mohnia danielsseni (Friele, 1879)
Neptunea denselirata Brögger, 1901: synonym of Neptunea despecta (Linnaeus, 1758)
Neptunea doliata Röding, 1798: synonym of Gelagna succincta (Linnaeus, 1771)
Neptunea ecaudata Link, 1807: synonym of Latirus gibbulus (Gmelin, 1791)
Neptunea ecaudis Locard, 1897: synonym of Turrisipho fenestratus (Turton, 1834)
Neptunea elegantula Dall, 1907: synonym of Boreotrophon elegantulus (Dall, 1907)
Neptunea fasciata Jaeckel, 1952: synonym of Neptunea despecta (Linnaeus, 1758)
Neptunea hanseni Friele, 1879: synonym of Colus sabini (Gray, 1824)
Neptunea ithitoma Dall, 1919: synonym of Boreotrophon alaskanus Dall, 1902
Neptunea kotakamaruae Ito & Habe, 1965: synonym of Neptunea elegantula Ito & Habe, 1965
Neptunea lachesis (Mörch, 1869): synonym of Turrisipho lachesis (Mörch, 1869)
Neptunea laevigata Link, 1807: synonym of Fasciolaria tulipa (Linnaeus, 1758)
Neptunea lurida A.