Mr. A. Hamilton, of Dunedin, collected a large number o shells at flood-margin of a stream at Waimarama, and kindly intrusted them to me for identification.

Fam. Phenacohelicidæ.

Gen. Thalassohelix, Pilsbry, 1892.

• Th. propinqua, Hutton.

Gen. Allodiscus, Pilsbry, 1892.

• A. tullius, Gray.

• A. planulatus, Hutton.

• A. mirandus, Hutton.

Gen. Therasia, Hutton, 1884.

• Th. tamora, Hutton.

Gen. Phenacohelix, Suter, 1892.

• Ph. iota, Pfeiffer.

• Ph. granum, Pfeiffer.

Gen. Laoma. Gray, 1849.

• L. leimonias, Gray.

• L. marina, Hutton.

Sub-gen. Phrixgnathus, Hutton, 1883.

• Ph. erigone, Gray.

• Ph. phrynia, Hutton.

• Ph. conella, Pfeiffer.

• Ph. glabriusculus, Pfeiffer.

• Ph. pumilus, Hutton.

• Ph. raricostatus, Suter.

• Ph. allochroidus, Suter.

• Ph. " " var. lateumbilicatus, Suter.

Gen. Endodonta, Albers, 1850.

• E. varicosa, Pfeiffer (= timandra, Hutton).

Sub-gen. Ptychodon, C. F. Ancey, 1891.

• P. pseudoleioda, Suter.

• P. microundulata, Suter.

• P. wairarapa, Suter.

• P. hunuaënsis, n. sp.

Gen. Charopa, Albers, 1860.

• Ch. coma, Gray.

• Ch. segregata, n. sp.

• Ch. gamma, Pfeiffer.

• Ch. epsilon, Pfeiffer.

• Ch. eta, Pfeiffer.

• Ch. bianca, Hutton.

• Ch. tapirina, Hutton.