Semisulcospiridae


Semisulcospiridae, common name semisulcospirids, is a family of freshwater snails, aquatic gilled gastropod mollusks with an operculum, in the superfamily Cerithioidea.
Semisulcospiridae diversified from the Pleuroceridae about 90 million years ago, in the Cretaceous.

Distribution

The family Semisulcospiridae occurs in western North America, the Far East of Russia, Korea, Japan, China and Vietnam.

Taxonomy

The family Semisulcospiridae was introduced as just a name by Morrison, without a diagnosis of the taxon. It is a valid taxon however, because its name has been used as valid.

2005 taxonomy

According to the taxonomy of Bouchet & Rocroi (2005), Semisulcospiridae was a subfamily within the family Pleuroceridae.

2009 taxonomy

The subfamily Semisulcospirinae within the Pleuroceridae was elevated to family level as Semisulcospiridae by Strong & Köhler.

Genera

There is very high level of mitochondrial heterogeneity in apparent species of Semisulcospiridae, that has not been sufficiently explained yet as of 2015.
Genera within the family Semisulcospiridae include:Hua S.-F. Chen, 1943 Juga H. Adams & A. Adams, 1854Koreoleptoxis J. B. Burch & Y. Jung, 1988
;Genera brought into synonymy:Biwamelania Matsuoka, 1985: synonym of Semisulcospira O. Böttger, 1886Koreanomelania: synonym of Koreoleptoxis J. B. Burch & Y. Jung, 1988Namrutua Abbott, 1948: synonym of Semisulcospira O. Böttger, 1886
  • "Parajuga": synonym of Juga H. Adams & A. Adams, 1854 Senckenbergia Yen, 1939: synonym of Semisulcospira O. Böttger, 1886