PROSOPEAS. 23 



spirum of Sumatra, and the aperture longer proportionately. 

 Specimens before me measure 



Length 23.7, diam. 5.5, length of aperture 7 mm., whorls 9*4. 



Length 21, diam. 5, length of aperture 6.5 mm., whorls 9. 



The first 2*4 whorls are vertically costulate, the riblets 

 worn off on the convex shoulder of the whorls. The aperture 

 is quite oblique, very narrow, and somewhat effuse basally. 

 The columella and parietal wall are almost in a line, the 

 angle at their junction being inconspicuous. The eggs are 

 cream- white, globular and hard-shelled, 1.8 mm. in diameter. 



14a. Var. hastatum Boettger, n. var. PI. 3, figs. 89, 90, 91. 



Shell somewhat larger and wider than acutissimum, the 

 columellar callus heavier ; aperture wider. Narrowly rimate. 

 Length 26, width 6.2, length of aperture 7.7 mm.; whorls 

 9% ; spire noticeably attenuated above. 



Java. Types 78446 A. N. S. P. 



15. P. HOCHSTETTERI (Zelebor). 



Shell imperforate, oblong-turrited, solid, closely subrugu- 

 lose-striate, white covered with a waxen cuticle. Spire a little 

 convexly turrited, the apex minute. Suture simple. "Whorls 

 71/2, a little convex, the last two-fifths the total length, a little 

 tapering basally. Aperture slightly oblique, acuminate-oval, 

 whitish inside, glossy. Columella callous, receding, slightly 

 folded above. Peristome simple, unexpanded, the margins 

 joined by a thin callus. Length 19.5, diam. 6.5, aperture 

 8.3x3.3 mm. (Zel.). 



Java ('Novara' cruise). 



Bulimus hochstetteri ZELEBOR in Pfr. & Zelebor, Verh. 

 zool.-bot. Ges. Wien, xvii, 1867, p. 806. PFR., Monogr. Hel. 

 Viv., vi, 107 (1868). 



' ' This species is very similar in structure and sculpture to 

 B. acutissimus Mouss., also from Java." 



Since the "Novara" lay at Batavia for the greater part 

 of May, 1858, and touched nowhere else in Java, it is likely 

 that this species was taken in the neighborhood of that port. 



