104 GLESSULA, BORNEO, EAST AFRICA. 



ready noted. G. sumatrana is however more tapering at the 

 apex and base, and it has not the strong striation at the 

 suture. Moreover the alt. of the visible part of the penult, 

 whorl in the Javan species is nearly a half less than its 

 breadth (diameter)." (Bttg.) 



82. G. WALLACEI (Pfeiffer). PI. 14, figs. 1, 2. 



Shell ovate-turrite, solid, closely and subregularly striate, 

 silky, blackish-brown. Spire long, nearly straight-sided, the 

 apex obtuse; suture minutely crenulate. Whorls 8, a little 

 convex, the last slightly more than one-third the total length, 

 pale in front, rounded at base. Columella arcuate, callus, 

 obliquely deeply truncate. Aperture vertical, sinuate-oval; 

 peristome unexpanded, obtuse. Length 21 to 22, diam. 9, 

 aperture 8x4 mm. (Pfr.) 



Borneo: Sarawak (Wallace). 



Achatina wallacei PFR., Malak. Bl. 1855, p. 168; Novit. 

 Conch, p. 82, pi. 22, f . 9, 10 ; Monogr. iv, 606. 



VI. East African Glessula. 



83. G. MONTANA (Martens). PI. 14, figs. 7, 8. 



Shell ovate-oblong, striatulate, glossy; green-buff, marked 

 with isolated brown streaks. Spire turrite, the apex obtuse. 

 Whorls 6y 2 , a little convex, separated by a deep crenulated 

 suture. Aperture two-thirds the total length, a little oblique, 

 oblong-piriform, bluish inside. Peristome simple, thin, the 

 oolumellar margin flexuous, thickened, white, abruptly trun- 

 cate. Length 14, diam. 6.33, aperture 6x4 mm. (Marts.) 



Eastern Abyssinia: Guno in Begemder, 1200 ft. elevation 

 (Heuglin & Steudner). 



Achatina montana MARTS., Malak. Bl. xiii, 1866, p. 95. 

 PFR., Monogr. vi, 228. Glessula montana JICKELI, Nova Acta 

 Vol. 37, 1875, p. 132, pi. 5, f. 19. Homorus montanus Marts., 

 KOBELT, Conchyl. Cab., p. 93. 



84. G. RUNSSORINA Martens. PI. 14, figs. 6, 10. 



The shell is lengthened ovate, weakly striate, glossy, yellow- 



