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Neritopsidae
Neritopsis radula shells
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Neritimorpha
Order:	Cycloneritida
Superfamily:	Neritopsoidea
Family:	Neritopsidae Gray, 1847

Neritopsidae is a family of small sea snails and freshwater snails in the clade Cycloneritimorpha (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

The great majority of species within this family are only known as fossils. The few species which are extant are sometimes termed "living fossils".

Taxonomy

2005 taxonomy

This family consists of three following subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005):

• Neritopsinae Gray, 1847
• † Naticopsinae Waagen, 1880 - synonym: Hologyridae Kittl, 1899
• † Paffrathiinae Heidelberg, 2001

2007 taxonomy

Bandel (2007) have established two new subfamilies. But he recognizes Naticopsinae at family level as Naticopsidae with newly created subfamilies in it.

• Neritopsinae Gray, 1847
• † Paffrathiinae Heidelberg, 2001 - to be clarified if Bandel recognized this family. It is not mentioned in his work Bandel (2007).
• † Cassianopsinae Bandel, 2007
• † Colubrellopsinae Bandel, 2007

Genera

Genera within the family Neritopsidae include:

The only extant genera are Neritopsis and Pluviostilla from subfamily Neritopsinae.

Subfamily Neritopsinae

• Neritopsis Grateloup, 1832
• Pluviostilla Kase & Kano, 1999
• Genus † Bandelopsis Frýda, Blodgett & Stanley, 2003
  • † Bandelopsis oregonensis
• Genus † Byzantia Kosnik, 1997
  • † Byzantia obliqua
• Genus † Dahmeria
• Genus † Devononerita
  • † Devononerita brevis
  • † Devononerita brevispira
  • † Devononerita megalacantha
  • † Devononerita typica
• Genus † Hungariella
• Genus † Neritoptyx
• Genus † Nuetzelopsis
  • † Nuetzelopsis orchardi
  • † Nuetzelopsis tozeri
• Genus † Praeturbonitella
  • † Praeturbonitella kochi
• Genus † Trachydomia
  • † Trachydomia newelli
  • † Trachydomia nodosa
  • † Trachydomia oweni
  • † Trachydomia raymondi
  • † Trachydomia turbonitella
  • † Trachydomia whitei
• Genus † Trachyspira
• Genus † Turbonitella
  • † Turbonitella biserialis
  • † Turbonitella fraterna
  • † Turbonitella humilis
  • † Turbonitella ovoides
  • † Turbonitella primula
  • † Turbonitella proligera
  • † Turbonitella pusilla
  • † Turbonitella semisulcatus
  • † Turbonitella strialata
  • † Turbonitella trunculinoda
  • † Turbonitella tuberculata
  • † Turbonitella ussheri
• Genus † Wallowiella Frýda, Blodgett & Stanley, 2003
  • † Wallowiella vallieri
• Genus † Weitschatopsis Frýda, Blodgett & Stanley, 2003
  • † Weitschatopsis pulchra

Subfamily † Naticopsinae

• Genus † Damesia
• Genus † Dicosmos
• Genus † Frombachia
• Genus † Jedria
  • † Jedria deckeri
  • † Jedria meeki
  • † Jedria ventrica
• Genus † Naticopsis McCoy, 1844
• Genus † Pachyomphalus
• Genus † Planospirina
• Genus † Pseudoplagiothyra
  • † Pseudoplagiothyra praecursor
• Genus † Vernelia

subfamily † Cassianopsinae - from Late Triassic

• † Cassianopsis Bandel, 2007 - type genus of the subfamily Cassianopsinae
  • Cassianopsis armata (Münster, 1841) - synonym: Naticella armata Münster, 1841 - type species
  • Cassianopsis decussata (Münster, 1841) - synonyms: Naticella decussata Münster, 1841; Naticella nodulosa Münster, 1841; Naticella cincta Klipstein, 1843; Neritopsis decussata; Palaeonarica cancellata Kittl, 1892; Palaeonarica hologyriformis Blaschke, 1905
• † Zardiniopsis Bandel, 2007
  • Zardiniopsis subornata (Münster, 1841) - synonym: Naticella subornata Münster, 1841 - type species
• † Fossariopsis Laube, 1869
  • Fossariopsis rugosocarinata (Klipstein, 1843) - type species

subfamily † Colubrellopsinae

• Colubrellopsis Bandel, 2007 - type genus
  • Colubrellopsis acuticostata (Klipstein, 1843) - synonym: Naticella acuticostata Klipstein, 1843 - type species

subfamily ?

• † Bipartopsis Gründel, Keupp & Lang, 2015
• † Hayamia Kase, 1980
• † Hayamiella Kase, 1984

References

1. Lozouet, P. (2009). "A new Neritopsidae (Mollusca, Gastropoda, Neritopsina) from French Polynesia". Zoosystema 31(1): 189-198. PDF.
2. ^ Bandel K. (2007). "Description and classification of Late Triassic Neritimorpha (Gastropoda, Mollusca) from the St Cassian Formation, Italian Alps". Bulletin of Geosciences 82(3): 215-274. doi:10.3140/bull.geosci.2007.03.215.
3. Bouchet, P. (2015). Bandelopsis Frýda, Blodgett & Stanley, 2003 †. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=865746 on 2017-11-06
4. KOSNIK, M. A. (1997). BYZANTIA: A NEW GENUS (GASTROPODA: NERITOPSIDAE). JOURNAL OF PALEONTOLOGY, 71(1): 53-56. JSTOR.
5. Bouchet, P. (2015). Wallowiella Frýda, Blodgett & Stanley, 2003 †. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=865737 on 2017-11-06
6. Bouchet, P. (2015). Weitschatopsis Frýda, Blodgett & Stanley, 2003 †. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=865747 on 2017-11-06
7. Bouchet, P. (2015). Bipartopsis Gründel, Keupp & Lang, 2015 †. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=865731 on 2017-11-06
8. Bouchet, P. (2015). Hayamia Kase, 1980 †. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://marinespecies.org/aphia.php?p=taxdetails&id=865755 on 2017-11-06
9. Bouchet, P. (2015). Hayamiella Kase, 1984 †. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=865734 on 2017-11-06

• Neritopsidae
• Taxa named by John Edward Gray