Solatisonax cabrali is a species of deep-water sea snail, a marine gastropod mollusk in the family Architectonicidae, the staircase shells or sundials.

[1] The description of Solatisonax cabrali by Tenório and colleagues, in 2011, was initially based on four young and eroded juvenile shells.

[2][1] The subsequent discovery of two well-preserved empty shells from southeastern Brazil (a juvenile and an adult specimen) brought new information on the species' distribution, ontogeny and morphology, which culminated in a redescription by Cavallari and colleagues in 2013.

Similarly, the shell's basal region is more inflated than the upper side in younger specimens, but in adult individuals this relationship is inversed.

[1] Solatisonax cabrali is known only from Brazilian waters, ranging from Pernambuco and Alagoas to Rio de Janeiro and São Paulo states.