Rissoa zosterophila, Webster (1905).

Rissoia (Sabanæa) annulata, Suter, Proc. Mal. Soc., vol. iii, 1898, p. 63; Index Faunæ N.Z., 1904, p. 77 (not of Hutton). Rissoia zosterophila, Webster, Trans. N.Z. Inst., vol. xxxvii, 1905, p. 277, pl. ix, figs. 5, a, b.

I remember that many years back when I began taking an interest in marine shells I found a small Rissoa in Lyttelton Harbour, which I took for Hutton's R. annulata, misled by the pale band below the suture. Through the kindness of Professor Chilton, Acting Curator of the Canterbury Museum, I have now been able to see the type of Rissoia annulata, which is simply a variety of Rissoina olivacea, Hutton. Everybody who has had to do with these minute shells knows how easy it is to make a mistake if specimens are not actually compared. I am much indebted to the Rev. Mr. Webster for clearing up this error.