A new species of Depressizona and the family rank of Depressizonidae Author Geiger, Daniel L. text Zootaxa 2009 2009-05-08 2095 1 57 59 https://biotaxa.org/Zootaxa/article/view/zootaxa.2095.1.6 journal article 10.11646/zootaxa.2095.1.6 1175-5326 5320170 Depressizonidae Geiger, 2003 Diagnosis . Shell calyptraeiform. Teleoconch with beaded sculpture, selenizone above periphery, slit closed to foramen. Umbilicate, brood pouch absent.