BY THE REV. J, E. TENISON-WOODS. 1051 



B. APERTA, von Mart. =Puim aperta, von Mart. IMalak. Bl. X. 

 1863, p. ISO = BuUminus apertus (JVapaeus), von Mart. Ostas, 

 Zool. II. 370, pi. 22, tig. 6 = BuUmns apertus, Pfr. Mon. Hel. VI. 

 p. 61. 



Timor. 



14. Stenogyra, Shuttleworth, Diagnosis Nov. Moll. No. 6, 

 p. 137. 



Shell elongate, turriculate ; whorls numerous ; apex obtuse or 

 truncate; aperture oval, small; columella thin, straight; peristome 

 simple, sharp. 



Animal like Achatina. Jaw finely plicate or ribbed ; radula 

 with median tooth, very small ; laterals tricuspid with a rather 

 long central cusp ; marginals short, tricuspid. About 250 species, 

 of world-wide distribution. The species of the Malayan region 

 belong to the section Opeas, in which the shell is small, thin, subu- 

 late, covered with small ribs. 



Stenogyra gracilis, Hutton, Jour. As. Soc. Beng. III. 

 p. Si = Bulimus gracilis, Hutton, I.e. =5. indicus, Pfr. Mon. Hel. 

 II. p. 157 ; Chemn. pi. 21, figs. 18-19 = B. apex, Mouss. =Spiraxis 

 ^ra«fe, Blanford, Contrib. Ind. Ms.\a.c. = Bulimus cerens, Jieeye, 

 Conch. Icon. Achatina, pi. 17, fig. 81. 



Java ; Bukit Pondok, Perak. 



S. (Subulina) tchehelensis, De Morgan, Le Naturaliste, 

 1885, p. Q9^S. (Opeas) terebralis (I), Theobald (1 n.sp.), G. Nevill, 

 Handl. Moll. Ind. Mus. 1878, p. 166 ; 0. F. von Mollendorff', 

 Jour. As. Soc. Beng. LV. p. 304. 



This is a fine subulate shell, more than an inch long with 10 or 

 12 whorls. 



Mount Chehel, near the River Plus and Bukit Pondok, Perak. 



S. arctispira (Opeas), von Mart. Ostas. Zool. II. p. 374, 

 pi. 22, fig. 10 = Bulimus arctispirus, Pfr. Mon. Hel. VI. p. 102. 

 Java. 



