XV 
striatulated, shining, pellucid, chestnut, variegated with luteous streaks 
and dots ; spire flat, sub-immersed ; suture sub-caniculated : whorls 3£, 
rather convex, rapidly increasing, the last broad, depressed, rounded at 
the periphery, not descending anteriorly, a little convex at the base, 
gradually ascending into a modei-ate umbilicus ; aperture a little oblique, 
lunately-rotundate ; peristome simple, straight, acute, margins somewhat 
closely united. 
Diam., greatest, 7§; least, 6§; height, 3 mill. 
Hab., New Zealand. 
Variety B, larger, luteous, adorned at the suture with a broad, 
articulated, chestnut-coloured band. 
Diam., greatest, 9 k; least, 7; height, 3f. 
Hab., Solomon Islands. 
HELIX ANTIPOD A, Jacquinot. 
Helix anlipoda, Homb. & Jacq., Yoy. Pole Sud, Zook, v., p. 18 ; 
Pfr., M.ILV., vol. 4, p. Ill; vol. 5, p. 182, No. 972. 
Shell narrowly umbilicated, globosely-conical, above striated, shining, 
grey, rufous-streaked ; spire conoiclal, rather acute ; whorls 5£, flattish, 
the last keeled, slightly descending, convex at the base; aperture hatchet- 
formed ; peristome simple, straight. 
Diam., greatest, 8 ; least, 7 mill. 
Hab., Auckland Islands. 
HELIX (THALASSIA) ATJCKLANDICA, Le Guill. 
Helix Aticklandica, Le Guill., Revue Zook, 1842, p. 140; Pfr., M.H.Y., 
vol. P, p. 119 ; vol, 5, p. 182, No. 973. 
Shell orbicularly-conoidal, thin, small, pellucid, shining, yellowish- 
brown ; whorls 6, depressly sub-convex, striated, evenly painted with 
longitudinal, equidistant, scarlet spots, the last keeled, above marked 
with transverse, obscure fine striae, beneath more convex, spotless, deeply 
umbilicated; aperture sub-rotund, anteriorly sub-angulated; peristome 
acute, fragile. 
Diam., 7 ; height, 4 milk 
Hab., Auckland Islands. 
HELIX SCIADIUM, Pfeiffer. 
Helix seiadium, Pfr., P.Z.S., 1857, p. 108; M.H.Y., vol. 4, p. 112; 
vol. 5, p. 183, No. 979. 
Shell umbilicated, conoidly semi-globose, rather solid, sub-arcuately 
striated, fulvous, obscurely variegated with reddish; spire convexly- 
conoidal, rather acute at the apex; suture margined; whorls 5J, slightly 
convex, the last not descending, acutely keeled at the periphery, at the 
base a little more convex; umbilicus almost equalling one quarter of the 
diameter ; aperture slightly oblique, angularly lunar; peristome simple, 
straight, colutnellar margin slightly expanded. 
Diam., greatest, 5J ; least, 5 ; height 3 milk 
Hab., New Zealand. 
