1072 
MALAYSIAN LAND AND FRESHWATER MOLLUSCA, 
P. ARULA, Bens. ; von Moll. l.c. 
Bukit Pondok. 
P. AUREOLA, Stol. Jour. As. Soc. Beng. XLI. 1872, p. 267, 
pi. 10, figs. 11-12 ; Pfr. Mon. Pneumon. Suppl. III. p. 148. 
Penang. 
P. PFEiFFERi, H. Adams, Proc. Zool. Soc. 1865, p. 416, pi. 21, 
figs. 11-12=P. pfeifferiana, H. Adams, Proc. Zool. Soc. 1869, 
p. 21b=P. pfeifferi, Pfr. Mon. Pneumon. Suppl. III. p. 149. 
Island of Batchian. 
P. JDNGHUHNi (Rhegistoma), lieY^Xot&^Rhegistoma janghuhni, 
Herk. Mus. Lugdun= Pw/fwa junghuhni^ Pfr. Mon. Pneumon. 
Suppl. III.p. 151. 
Java. 
P. AMROiNENSis (Callia), von Mart.= CflPfa amboinensis, von 
Mart. Monatsber. Berl. Ak. 16 Jan. 1865, p. bZ—Pupina amhoi- 
nensis, Pfr. Mon. Pneumon. Suppl. III. p. 154. 
Amboyna. 
P. vEscoi, Morelet, Rev. et Mag. Zool. 1862, p. 479 ; Crosse 
and Fisch. Jour. Conch. XI. p. 372; Pfr. Mon. Pneumon. Suppl. 
II. p. 94. 
Pulo Condor. 
P. SUPERBA, Pfr. Proc. Zool. Soc. 1855, p. 118; Mon. Pneumon. 
Suppl. I. p. 94. 
Sumatra. 
31. Megalomastoma, Guilding; Swainson, Malacology, 
pp. 186 and 336. 
Shell cylindrical re.sembling Pupa, but has a horny operculum ; 
spire not thickened ; teeth or fold on the pillar none. 
Megalomastoma anostoma, Bens. Pfr. Malak. Bl. 1854, p. 89 
=J/. sectiLabrum, Pfr. Mom Pneumon. p. 133 ; Chemn. new edit. 
