22 PROSOPEAS. 



ate, opaque, waxen. Spire elongate, rather acute. Whorls 8, 

 a little convex, the last about one-third the length. Colu- 

 mella straightened, nearly reaching the base. Aperture ob- 

 long-oval ; peristome simple, acute, the columellar margin very 

 narrowly reflexed, adnate. Length 13, di-am. 4.5, aperture 

 4.5x2.66 mm. (Pfr.). 



Java (v. d. Busch, Zollinger). Sumatra at Palembang, at 

 the tombs of the Sultans. Western Borneo at Singkawang, 

 Bengkajang, Seminis and Mampawa, on dry, sandy ground, 

 even near the sea (Martens). Saleyer (Weber). 



Bulimus achatinaceus PFR., Symbol, iii, p. 82; Monogr., 

 ii, 156; iii, 393; iv, 454; vi, 92. REEVE, Conch. Icon., v, pi. 

 67, f. 470. MOUSSON, Die Land- und Siisswasser-Mollusken 

 von Java, p. 35, pi. 4, f. 4 (1849). Stenogyra a., MARTENS, 

 Ostas. Zool., p. 375, pi. 22, f. 9 ; Weber 's Zool. Ergebn. Niederl. 

 Ost-Ind., p. 243. ISSEL, Moll. Borneo, p. 51. 



14. P. ACUTISSIMUM (Mousson). PI. 3, figs. 85, 86, 87, 88. 



Shell imperforate, subulate, closely and regularly trans- 

 versely striate, the striae a little curved ; opaque, covered with 

 a pale corneous cuticle. Spire long, acute, the suture deep. 

 Whorls 8i/2, widely coiled, flattened, the last somewhat taper- 

 ing, one- fourth the total length. Aperture oblong-oval, some- 

 what compressed above; peristome unexpanded, acute, the 

 right margin somewhat arched forward, basal margin reced- 

 ing, subhorizontal, columellar margin straight, narrowly re- 

 flexed, somewhat truncate at the base. Length 23.5, diam. 

 5.5 mm. (Mouss.) . 



Buitenzorg, near the botanical gardens, Java (Zollinger, 

 Weber). Gunung Salak (Strubell). 



Bulimus acutissimus Mss., Journ. de Conchyl., 1857, p. 

 159. PFR., Monogr., iv, p. 453. Stenogyra a., MARTENS in 

 Weber's Ergebn. einer Reise in Niederl. Ost.-Ind., ii, p. 243. 

 Prosopeas a., BOETTGER, Bericht Senek. Ges. Frankfurt, 

 1890, p. 147. 



Boettger reports specimens from Gunung Salak, Java, as 

 with 9 whorls and 20-21% mm. long, 5-5*4 wide, aperture 

 6*4, width 3% mm. The spire is more acute than in P. laxi- 



