[2] Three different spellings (Haminoea, Haminea, Haminaea) were used for this genus over two hundred years.

The ICZN finally made a decision that the correct spelling is Haminoea.

[2] Oskars et al. (2019) restricted Haminoea to species from the Atlantic and eastern Pacific, and resurrected Haloa and Lamprohaminoea for Indo-Pacific species.

[3] Many species within this genus have green algae growing on their shells.

The posterior tip of the headshield is bilobed, except in Haminoea elegans.