1016 MALIYSIAN LAND AND FRESHWATER MOLLUSCA, 
This is a common shell like the last, and is subject to similar 
variations in colouring, which divide into three principal forms. 
Var. A : chestnut above, white below, divided at the periphery by 
a broad white band ; umbilicus, chestnut brown. This variety is 
figured by Chemn. (Helix, fig. 1174). Var. B; greyish above 
with a brownish median (Chemn. fig. 1175). Var. C: white with a 
blackish-brown band. Regarded by some as quite distinct from 
K. citrina. 
Moluccas, Malay Peninsula, &c. 
N. FULVizoNA, Mousson, in coll. ; von Martens, Ostas. Zool. 
II. p. 2Q\ = Helix fulvizoiia, Pfr. Mon. Hel. V. p. 96. 
This is a most variable shell with regard to its colouring. Ten 
difterent varieties are enumerated by Pfr., the type approaching 
somewhat to Helix citrina, L. 
Celebes. 
N. PARCTPILA, von Martens, in Monat. Akademie Berlin, 18th 
April, 1864, p. 264 ; (Xesta) Ostas. Zool. II. p. 192, pi. 9, fig. 1 = 
Helix imrcipila. Pfr. Mon. Hel. V. p. 119. 
Adenare Islands, Moluccas. 
N. IGNESCENS, Pfr. = Helix ignescens, Pfr. Proc. Zool. Soc. 1861, 
j>. 20, pi. 2, fig. \=Nanina ignescens, Wallace, Proc. Zool. Soc. 
1865, p. 406 ; (Xesta) von Martens, Ostas. Zool. II. p. 192, pi. 9, 
fig. 2 = Helix ignescens, Pfr. Mon. Hel. V. p. 98. 
Batchian Island, Moluccas. 
N. MONOZONALIS, Lamarck, = V. monozalis, Pfr. Nomen. Hel. 
p. 40, No. 582 = Helix monozonalis, Lamarck, Hist. Nat. 1st edit. 
IV. j). 66, Desh. edit. p. 29 = Helix unizonalis, Desh. Encycl. 
Meth. pi. 462, fig. 6 = Helicella unizonalis. Per. pr. 241, Hist, 
pi. 91, fig. 4= Nanina monozonalis. Gray, Proc. Zool. Soc. 1834, 
p. 59 = Zonites unizmialis, Swainson, Malac. p. 331 = Helix 
monozonalis, Pfr. Mon. Hel. I. p. 72. 
Swainson regards this shell as a mere variety of X. citrina. 
Amboyna. 
