Happia ammoniformis
Happia ammonocera
Happia coffreana
Happia cyclina
Happia euspira
Happia florezi
Happia footei
Happia glaberrima
Happia grata
Happia iheringi
Happia insularis
Happia microdiscus
Happia muelleri
Happia pebasensis
Happia pilsbryi
Happia pucayaensis
Happia rosenbergiana
Happia vitrina