Inustr. — U. S. Expl. Exped., vol. XIl, pl.V, fie. 63 a-c. 
— Cox, Mon. Austral. Land Shells, pl AX fie. 40Gb 
Reeve, Conch. Icon., vol. VII, pl. CXXX, fig. 794: pl. 
CLAXXIX, fig. 1322. — Voy. Erebus et Terror, FOL II, 
Moll., pl. I, fig. I. — Tryon, Manual Conch. (2), vol. III, 
pl. XXI, fig. 8-40. 
Deseript. — Gray, Dieffenbach’s N. Zeal., vol. Il, p. 262. 
— Proc. Boston N. H. S., vol. Il, p. 178. — P. Z, S. 1854, 
p. 90. — U.S. Expl. Exp., vol. XII, p. 34. — Cox, Mon. 
Austral, Land Shells, p. 33. — Gould, Otia Conch., p. 2b. 
— Reeve, Conch. Icon., Helix, sp. 794, 1322. — Pfeiffer, Mon. 
Hel. viv., vol. I, p. 192. — Hector, Cat. Land Moll. N. Zeal., 
1873, p. 47. — Hutton, Man. N. Zeal. Moll., 1880, p. 20. — 
Trans. N. Zeal. Inst., vol. XVI, p. 189. — Tryon, Man. 
Conch, (2). vol. 1Ul, p. 37. 
Anat. — Trans. N. Zeal. Inst., vol. XVI, p. 470, pl. IX, 
fig. A; pl. XI, fig. I (wadule ; machoire). 
Hab. — Ile du Nord: Auckland; Hokianga; Great 
Omaha; Titirangi; Napier; Wellington; Thames; Ohaupo; 
Whangarei; Chaine des Monts Hunua; Mont Pirongia; 
Taupiri. 
Sous-Genre VI. — Pyrrua, Hutton, 1884. 
Hutton, Trans. N. Zeal. Inst., vol. XVI, p. 200. 
67. F. Cressida, Hutton, sp. 1883. 
Inustr. — Pilsbry, Man. Conch. (2 ), vol. IX,-pl. Hl, fig. 
17-419. 
peseript. — Hutton, NV. Zeal. Journ. Sc., vol. I, p. 476, — 
Trans. N. Zeal. Inst., vol. XVI, p. 178,200. — Pilsbry, 
Man. Conch. (2), vol. VII, p. 72. 
Anat. — Trans. N. Zeal. Inst., vol. XVI,° p. 178; 
pl. IX, fig. X ; pl. XI, fig. N. (radule ; machoire). 
Hab. — Tle du Nord : Wellington. — [le du Sud: 
Southland (Thomson); Preservation Inlet: Haast River ; 
Greymouth. — Ile Stewart. ane 
