1024 MALAYSIAN LAND AND FRESHWATER MOLLUSCA, 
Ostas. Zool. pi. 11, figs. 2-5 (Normal and sinistral shells) = 
Nanina producta, Mousson = AriopUanta martini, Semper = 
Helix martini, Pfr. Mon. Hel. IV. p. 300. 
Padang, Sumatra. 
N. BROOKEI, Adams and Pteeve, = Helix hrookei, Adams and 
Reeve, Voy. Samarang, Moll. p. 60, pi. 15, fig. 4; Chemn. 2nd 
edit. Helix No. 870, pi. 135, figs. 1-2; Pfr. Mon. Hel. III. 
p. 52 = n. gigas, Pfr. Zeitschr. f. Malak. 1850, p. 81. 
In the mountains of Borneo. 
N. HUGONis, Pfr. = Helix hugonis, Pfr. Proc. Zool. Soc. 1863, 
p. 523 ; Novit. Conch, p. 304, No. 415, pi. 74, figs. 1-3; Mon. 
Hel. V. p. 81 == ZT. sinistra, Bonnet, Rev. Zool. 1864, p. 67, 
pi. 5, fig. 2 = Nanina hugonis, von Martens, Ostas. Zool. II. 
p. 225. 
Collected in the island of Lahuan by Sir Hugh Low. 
N. REGALis, Benson, = Helix regalis, Annals Mag. Nat. Hist. 
1850, p. 215 ; Chemn. 2nd edit. Helix No. 915, pi. 141, figs. 5-6, 
var. 7-8 = H. vittata, Adams and Reeve, Voy. Samarang, Moll, 
p. 60, pi. 15. fig. 7. 
Sarawak and Balambangan. 
N. LiNDSTEDTi, Pfr. = Helix lindstedti, Pfr. Proc. Zool. Soc. 
1856, p. 387 ; Mon. Hel. IV. p. 31. 
Malacca. 
N. JANUS, Chemn. = Helix janus, Chemn. XI. p. 307, pi. 213. 
figs. 3016-17; 2nd edit. Helix No. 59, pi. 11, fig.s. 4-6; Pfr 
Proc. Zool. Soc. 1842, p. 87 ; Mon. Hel. I. p. 77 = Helicella 
hifrons. Per. p. 233= Helix mackenziaiia. Soul. Rev. Zool. 1841, 
p. 347 = H. balesteriana, Lea, Trans. Amer. Phil. Soc. VII. 
p. 460, pi. 12, fig. 10 = Ariophanta ganus, Beck, Index, p. 5. 
Mount Ophir, near Malacca. 
N. RUMPHii, v.d. Busch, = Helix rumphii, v. d. Busch, Phil. 
Icon. I. 1, p. 9, pi. 1, fig. 2 ; Chemn. 2nd edit. Helix No. 60, 
