HELICID#. 13 
narrow, pervious, scarcely exceeding one-sixth of the diameter ; aperture 
a little oblique, rotundly lunar; peristome simple, straight, margins 
remote, columellar margin accurately bent downwards, slightly dilated 
above. 
Diam., greatest, °4; least, -32 ; height, ‘15. (Pfr.) 
Bay of Islands, New Zealand (Hochstetter.) 
H. novare, Pfeffer; Malak Bi, viii., 1861, 2.148; AA V., vol. 5, 
p. 169, Vo. 882. Shell somewhat narrowly umbilicated, depressed, 
thin, somewhat smooth, finely striated at the suture, pellucid, shining, 
pale, yellowish-horny ; spire flat; suture simple, scarcely impressed ; 
whorls 4, rather convex, gradually increasing, the last depressed, not 
descending ; aperture somewhat greater, slightly oblique, lunar ; peris- 
tome simple, straight, margins sub-converging, columellar margin above 
shortly expanded. 
Diam., greatest, ‘23 ; least, 2; height, ‘o8. (Pfr.) 
Bay of Islands, New Zealand (Hochstetter.) 
N.B.—Very closely allied to HZ. remota, Benson, from St. Helena. 
FAMILY—HELICID~. 
Lingual teeth in numerous straight transverse rows, equal, uniform, 
and with the edge-teeth serrated or dentate. Head well developed ; 
mouth with a horny upper jaw; eye-peduncles and tentacles retractile 
under the skin. Margin of the mantle not extended, nor produced into 
lobes ; pulmonary orifice on the right side, under the edge of the shell. 
Foot elongated, not glanduliferous. Orifice of reproductive organs at 
the base of the right eye-peduncle. Aperture closed by an epiphragm 
during hybernation. 
Sub-Family—Succinine. 
Tentacles short and thick ; foot broad. Shell thin, horny, ovate, or 
oblong ; spire small; aperture large, oval ; columella simple, not trun- 
cate anteriorly ; peristome acute. 
Genus, SUCCINEA—Draparnaud. 
Animal nearly retractile within the shell. Shell imperforate, oval, 
horny ; spire short, last whorl large ; aperture wide, oblong ; columella 
simple, acute ; peristome simple, acute. 
World wide ; sub-aquatic in habit. 
S. tomentosa, Pfeffer. P.ZS., 1854, ~. 297; LAV. vol. 4, 
p. 814; vol. 5, p. 33, (Vo. 108; Reeve, Conch Icon., No. 81. Shell 
oblongly-conical, thin, covered with downy hairs, not shining, pellucid, 
pale horny ; spire conical, acute ; whorls 3, the second convex, the last 
three quarters of the entire length of the shell, attenuated at the base ; 
columella sub-callous, slightly plaited, arcuated; aperture a little oblique, 
sharply oval, somewhat incumbent ; peristome simple, rather expanded. 
Length, 3; diam., ‘2; height, ‘15. Aperture, length, ‘23 ; breadth 
in the middle, 16.(__ Pfr.) 
New Zealand (Strange.) 
