Cyclostrema cingulatum -... en.wikipedia.org

WoRMS - World Register of... www.marinespecies.org

Cyclostrema - Wikipedia en.wikipedia.org

LIOTIIDAE - Gastropods by... conchology.be

LIOTIIDAE - Gastropods by... conchology.be

LIOTIIDAE - Gastropods by... conchology.be

LIOTIIDAE - Gastropods by... conchology.be

LIOTIIDAE - Gastropods by... conchology.be

LIOTIIDAE - Gastropods by... conchology.be

Gastropods by Eddie Hardy -... conchology.be

LIOTIIDAE - Gastropods by... conchology.be

Gastropods by Eddie Hardy -... conchology.be

Cyclostrema - Wikipedia nl.wikipedia.org

List of Mollusca of Order... www.youtube.com

WoRMS - World Register of... www.marinespecies.org

New and little known... www.tandfonline.com

New and little known... www.tandfonline.com

Molluscabase - browser www.molluscabase.org

WoRMS - World Register of... www.marinespecies.org

Geographical coordinates... www.researchgate.net