See quotation. The mostpopular form in Melbourne is Turbo undulatus, Chemnitz. T. constricta is also called the Native Whelk.
1882. Rev. J. E. Tenison-Woods, `Fish and Fisheries of NewSouth Wales,' p. 122:
« Trochocochlea constricta, Lam., is used as a substitutefor the British perriwinkle, but it is only consumed to a verysmall extent.»