• 7 genera
Family Isididae Lamouroux, 1812 
Construction in progress!
The most recent treatment (Alderslade, 1998) of the family Isididae proposed subdivision into 4 subfamilies:
sF. Circinisidinae Grant
sF. Isidinae Kolliker
Chelidonisis Studer, 1890
Isis Linnaeus, 1758
Muricellisis Kukenthal, 1915
sF. Keratoisidinae Gray
Australis Bayer & Stefani, 1987
Acanella Gray, 1870
Caribisis Bayer & Stefani, 1987
Isidella Gray, 1857
Keratoisis Gray, 1869
Lepidisis Verrill, 1883
Orstomisis Bayer, 1990
Sclerisis Studer, 1879
sF. Mopseinae Gray
• 20 genera