1014 MALAYSIAN LAND AND FRESHWATER MOLLUSCA, 
N. OVIVITELLTJS. Reeve, = Helix ovivitellus, Reeve, Conch. Icon. 
No. 1425, pi. 202 ; Pfr. Mon. Hel. IV. p. 22. 
Amboyna. 
N. HALATA, Mouss. Moll. Java, p. 112, pi. 21, fig. 2 = Hemiplecta 
halata, Albers, Heliceen, p. 60 = Helix halata, Pfr. in Chemn. 2nd 
edit. Helix, No. 929, pi. 142, fig.s. 9-10 ; (JSfanina), Pfr. Mon. Heb 
III. p. 45. 
Dompo, J ava. 
N. RAREGUTTATA, Mouss. Moll. Java p. 112, pi. 21, fig. .3 = 
Helix rareguttata, Pfr. INIon. Hel. III. p. 46. 
Bimah ; Sumbawa. 
N. SPARSA, Mouss. Jour. Conch. VI. 1857, p. 155, pi. 6, fig. 4 
= Helix sjmrsa ( Hanina), Pfr. Mon. Hel. IV. p. 343. 
Island of Bali. 
N. COFFEA, 'Piw = Helix coffea, Pfr. Proc. Zool. Soc. 1855, 
p. 111 = Nanhyx (Xesta) cqffea, Pfr. Versuch. p. 119 = Helix coffea, 
Pfr. Mon. Hel. IV. p. 23. 
Moluccas and Island of Lombok. 
N. CRESPIGNYI, Higgins, = iV. decreepignii (Xesta), Higgins, 
Proc. Zool. Soc. 1868, p. 179, pi. 14, fig. i = N. deer epignyi Z' Xesta), 
Paetel, Catal. p. 84 = Helix zrespignyi, Pfr. Mon. Hel. VII. 
p. 80. 
Island of Labuan. 
N. TROCHUS, Helix irochus. Mull. Verm. II. p. 79, No. 
275 ; Chemn. 2nd edit. Helix, No. 127, pi. 21, figs. 13-14 = Trochus 
hurtensis, Chemn. IX. pt. II. p. 52, pi. 122, fig.s. 1055-56 = Nanina 
trochus. Beck, Index p. 4 = iV circurndata, von Martens = var. 
Helix sulphurea, Reeve H. drcumpicta, Mousson = H. colorata, 
Mousson = Nanina t Hemiplecta j drcumpicta, Paetel, Catal. p. 84 
= Helix trochus, Pfr. Mon. Hel. I. p. 46 ; III. p. 46 ; VII. p. 80. 
Also, Zeitsclirift fiir Malak. 1851, and Chemn. Ed. Nov. Helix I. 
p. 160, pi. 146, figs. 3-5. 
