18 HELICIDA:. 
a little oblique, depressed, angularly lunar; peristome simple, straight, 
columellar margin ascending, callously-reflexed. 
Diam: 16; height..13.) (Pir) 
New Zealand. 
H. erigone, Gray; P.ZS., 1849, p. 165; Helix Erigone, 
Pfr., M.H.V., vol. 3, p. 60; vol. 5, p. 86, Wo. 278; Reeve, f. 817. 
Shell perforated, conical, thin, smooth, keeled, pellucid, fulvous, 
obscurely streaked with red flame-like markings ; spire conical, rather 
acute; whorls 6-7, slightly convex, the last flattish beneath the sub- 
acute keel; aperture a little oblique, depressed, sub-angularly lunar ; 
peristome simple, straight, columellar margin short, sub-callous, rather 
reflexed. 
Diam., greatest, ‘1; height ‘08. (Pfr.) 
Auckland (Major Greenwood.) 
b. Umbilicus broad. 
H. alpha, Zafer; P.ZS.,, 1851; ALA.V., vol. 3, p. 112); dol. 
5, p. 183, Wo. 981; Helix stipulata, Reeve, f. 813. Shell umbilicated, 
conical, keeled, obliquely finely striated and distantly lamellarly-ribbed, 
variegated with brown and yellow streaks ; spire rather convexly-conical, 
apex rather obtuse ; whorls 5%, slightly convex, the last not descending, 
acutely denticulately keeled, flat at the base, sub-angulated at the 
moderate, pervious umbilicus ; aperture diagonal, somewhat hatchet- 
shaped; peristome simple, straight, upper margin short, basal margin 
arcuated, sub-vertically ascending towards the columella. 
Diam:,sereatest,, 17 = least, 16> height, rey” (Pir.) 
New Zealand (Strange. ) 
Ee OCLAM Aes LZ Sa SOSA aT, Vig DOL 25 Pa MOMmCOleS, 
p. 183, Wo. 982; H. barbulata, Reeve, f- 814. Shell umbilicated, 
trochiformed, keeled, thin, arcuately strongly plaited, fulvous, broadly 
spotted with chestnut; spire elevated, convexly-conical, rather acute ; 
suture margined ; whorls 7, narrow, flattish, the last somewhat receding, 
not descending, ciliated towards the keel, slightly convex at the base ; 
umbilicus narrow; aperture oblique, angularly-lunar ; peristome simple, 
straight, basal margin regularly arcuated. 
DMiam:, sreatest, 22/5, height, «13° )(Pir.) 
New Zealand (Strange.) 
Queenstown, Dunedin. (F.W.H.) 
B. Shell turbinate. 
a. Umbilicus narrow. 
H. ophelia, Pfeffer; P.Z.S., 1854, ~.146; ILH.V., vol. 4, p. 
29; vol. 5, p. 80, Wo. 241; Reeve, f.1345. Shell perforated, turbinately 
depressed, thin, under the lens irregularly marked with hair-like strie, 
not shining, diaphanous, horny, marked with narrow reddish streaks ; 
spire rather convexly conoidal, crown small, fine, somewhat acute ; 
whorls 5, flattish, rather prominent, gradually increasing, the last not 
descending, sub-angular, flattish at the base ; aperture oblique, rotundly- 
