1024 MALAYSIAN LAND AND FRESHWATER MOLLUSCA, 



Ostas. Zool. pi. 11, figs. 2-5 (Normal and sinistral shells) = 

 Nanina producta, Mousson = Ariophanta martini, Semper = 

 Helix martini, Pfr. Mon. Hel. IV. p. 300. 

 Padang, Sumatra, 



N, BROOKEI, Adams and Reeve, =^Helix brookei, 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 = E. 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 = 5". 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 Labuan 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 j anus, Chemn. XI. p. 307, pi. 213. 

 figs. 3016-17; 2nd edit. Helix No. 59, pi. 11, figs. 4-6; Pfr 

 Proc. Zool. Soc. 1842, p. 87 ; Mon. Hel. I. p. 77 = Helicella 

 bifrons, Fer. p. 233= Helix mackenziana, Soul. Rev. Zool. 1841, 

 p. 347 = H. balesteriana, Lea, Trans. Amer. Phil. Soc. VII. 

 p. 460, pi. 12, fig. 10 = Ariophanta j anus, 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, 



