Buchia plicata(Zittel, 1864) is illustrated by topotypes from Waikato South Head, New Zealand (Puaroan Stage, Lower Tithonian).Buchia blanfordiana(Stoliczka) from the Spiti Shales of Himalaya, judged by the lectotype and topotypes, is closely related toB. plicata. Specimens from the Edgar Range, Canning Basin, Western Australia, previously reported asBuchia spitiensisandB. spitiensisextensa, are illustrated and re-identified asBuchiaaff.blanfordiana(Stoliczka).