Circulus (gastropod)
Circulus is a genus of very small and minute sea snails with an operculum, marine gastropod mollusks in the family Vitrinellidae.Species
According to the World Register of Marine Species, the following species with valid names are included within the genus Circulus
- Circulus biporcatus
- Circulus choshiensis
- Circulus cinguliferus
- Circulus congoensis
- Circulus cosmius Bartsch, 1907
- Circulus delectabile
- Circulus deprinsi Rolán & Swinnen, 2013
- Circulus harriettae
- Circulus liratus
- Circulus liricincta
- Circulus marchei
- Circulus microsculpturatus Oliver & Rolán, 2011
- Circulus modestus
- Circulus orbignyi
- Circulus pseudopraecedens Adam & Knudsen, 1969
- Circulus rossellinus Dall, 1919
- Circulus ryalli Oliver & Rolán, 2011
- Circulus semisculptus
- Circulus senegalensis Adam & Knudsen, 1969
- Circulus smithi Bush, 1897
- Circulus soyoae
- Circulus stephani Rolán & Ryall, 2002
- Circulus striatus
- Circulus supranitidus
- Circulus teramachii
- Circulus texanus
- Circulus tornatus
The Indo-Pacific Molluscan Database also mentions the following species with names in current use :
- Circulus acutilirata
- Circulus aequatorialis
- Circulus angulata
- Circulus callusa
- Circulus duplicatus
- Circulus gyalum
- Circulus octolirata
- Circulus pachyston
- Circulus planorbis
- Circulus sculptilis
- Circulus transculpta
- Circulus venusta
- Circulus virginiae
;Species brought into synonymy:
- Circulus biporcata : synonym of Circulus biporcatus
- Circulus carinulatus Locard, 1889: synonym of Circulus striatus
- Circulus costulatus Locard, 1889: synonym of Circulus striatus
- Circulus cubanus Pilsbry & Aguayo, 1933: synonym of Cyclostremiscus cubanus
- Circulus dalli Bush, 1897: synonym of Cyclostremiscus dalli
- Circulus formosissimus Brugnone, 1873: synonym of Skeneoides jeffreysii
- Circulus hendersoni : synonym of Cyclostremiscus hendersoni
- Circulus jeffreysii Monterosato, 1872: synonym of Skeneoides jeffreysii
- Circulus margaritiformis : synonym of Cirsonella margaritiformis
- Circulus modesta : synonym of Circulus modestus
- Circulus stirophorus M. Smith, 1937: synonym of Cyclostremiscus beauii
- Circulus tatei : synonym of Elachorbis tatei
- Circulus tornata : synonym of Circulus tornatus
- Circulus translucens : synonym of Xyloskenea translucens
- Circulus tricarinatus : synonym of accepted as Circulus striatus
