Parvulastra is a genus of starfish belonging to the family Asterinidae.

[2][3] The species of this genus are found in Southern Hemisphere.

[1][3] The genus shows an unusual reproductive mode within Asterinidae: Parvulastra parvivipara and Parvulastra vivipara are viviparous.

Prior to their description as distinct species, they were considered variants of Parvulastra exigua, which has free-living (but non-feeding) larvae.

This article about a starfish is a stub.