XVII 
on the wall of the aperture, two on the right margin ; peristome simple, 
straight. 
Diam., 2J ; height, 2§ mill. 
Hab., New Zealand (Strange). 
HELIX (XANTHOMELON) PACHYSTYLA, Pfeiffer. 
Helix pachystyla, Pfr., P.Z.S., 1845, p. 71 ; M.H.V., vol. 1, p. 19 ; 
vol. 5, p. 22G, No. 1360 ; Cox, M.A.L.S., 1868, p. 40, pi. 6, fig. 8 ; 
Peeve, Conch. Icon., No. 364. 
Shell imperforate, dcpressly-globose, solid, heavy, striated, decussated 
with concentric lines, whitish, covered with a dull green, blackish, 
radiating epidermis ; spire short; whorls 51, rapidly increasing, the last 
inflated, anteriorly shortly deflected; columella oblique, dilated, callous, 
white, obscurely and broadly unidentated ; aperture irregularly lunately- 
rounded, within lacteous; peristome straight, within thickened, basal 
margin somewhat reflexed. 
Diam., greatest, 43 ; least, 38 ; height, 37 mill. 
Hab., New Zealand. 
N.B.—Dr. Cox describes the Australian specimens of the above 
species, as follows :— 
Shell imperforate, globular, solid, glossy, faintly wrinkled with lines 
of growth, having finer striae between, and decussated with still fainter 
concentric and oblique rugose strife, covered with reddish-yellowish, or 
greenish-brown epidermis, generally streaked with brown ; spire very 
short, obtuse; suture indistinctly crenulated ; whorls 5 to 54, convex, 
rapidly increasing, the last inflated, shortly deflected anteriorly; aperture 
nearly diagonal, irregularly lunately-rounded ; peristome white, thick¬ 
ened, slightly reflected, especially-at the base, columellar margin 
expanded, hollowed, nearly straight within, and forming an obsolete 
broad tooth, externally spread over the umbilicus, edges connected by a 
callus. 
Diam., greatest 1-80, least D50, height 1-30 of an inch. 
Hab., Facing Isle, Port Curtis, Dunk Isle, Cape Upstart, and Wide 
Bay (MacGillivray) ; Port Denison and Rockhampton, Queensland 
(Cox). A more ponderous shell is found in N.W. Australia. 
HELIX KIVI, Gray. 
Nanina Kivi, Gray, Dieff. Trav., vol. 1, p. 262. Helix Kivi, Pfr., 
M.II.V., vol. 1, p. 192 ; vol. 5, p. 232, No. 1394. 
Shell imperforated, turbinated, white, thin, obliquely closely striated, 
adorned with short, irregular, oblique, purple-brown streaks; spire 
sub-conical, obtuse ; whorls 6, flatfish, the last rounded, convex at the 
base, white, smooth; aperture broad, lunar; peristome simple, straight, 
columellar margin somewhat reflected. 
Diam., greatest, 10; least, 9 ; height, 8 mill. 
Hab., New Zealand. 
