Pyura dalbyi, the yellow cunjevoi, is a species of tunicate This species has been found in several localities in Victoria, south-eastern Australia,[1] and in a single locality in Western Australia (Albany harbour).

[2] Unlike other species of cunjevoi in temperate Australasia, P. dalbyi has been found almost exclusively subtidally.

[1] Pyura dalbyi has a yellow, sand-free tunic, a highly conspicuous feature that readily distinguishes it from other species of cunjevoi in temperate Australasia.

[2] Pyura dalbyi is named after Dr. James Edward Dalby Jr, who reported distributional, morphometric and ecological differences between this species and its congener P.

[2] This species is a member of the "P. stolonifera species complex", a group of large ascidians that are often indiscriminately referred to as P. stolonifera in the literature.