140 AMPHIDKOMUS, GROUP III. 



A. JAVANICUS (Sowerby). PI. 61, figs. 50, 51. 



Shell either sinistral or dextral, im perforate or nearly so, solid, 

 ovate-pyramidal, closely streaked with dull crimson, chestnut and 

 blackish on an olivaceous buff, ochre-tinted or livid ground, the 

 streaks often broken into a mottled pattern ; early whorls and a 

 border below sutures white, pink or pale ; several blackish varices 

 followed by whitish streaks generally present, but inconspicuous in- 

 the general strigation. Surface glossy, distinctly striate. Spire 

 rather straightly conic; whorls 6-|-7-J, slightly and equally convex,, 

 separated by moderately impressed sutures marked with a white 

 hair-line. Aperture but slightly oblique, ovate, bluish inside ; peri- 

 stome white, expanded, subreflexed, blunt at the edge; columella 

 nearly straight; parietal callus white, deeply entering. 



Alt. 50, diam. 26^, longest axis of aperlure 26^ mill, (dextral). 



Alt. 52, diam. 26, longest axis of aperture 26^ mill, (sinistral). 



Alt. 62, diam. 31, longest axis of aperture 32 mill, (sinistral). 



Java : near Palabuan, in the southwest (Prof. E. v. Martens)- 



Bidinus javanicus SOWB., Conch. Illustr., Bulinus p. 6, fig. 35, 

 35* (1841). Am phidromus javanicus Sowb., FULTON, Ann. Mag. 



N. H. (6), xvii, 1896, p. 73 Bulimus loricatus PFR., P. Z. S.,. 



1854, p. 293; Monogr., iv, 372; vi, 16. MARTENS, Ostas. Land- 

 schn., p. 339, pi. 22, f. 2. 



The much and evenly streaked and often in places mottled color- 

 pattern, distinguishes this from other striate Javan species, while the 

 streaked forms of A. interruptus, inversus, etc., are distinctly smoother. 

 Sowerby did not describe javanicus, but his illustration is character- 

 istic, the locality Java being given. No locality for loricatus PfK 

 was known until Dr. von Martens found it near Palabuan. 



3. Group of A> beccarii. 



A. BECCARII (Tapparone Canefri). PI. 68, figs. 21, 22 



Shell compressed-subumbilicate, fusiform-oblong, sinistral, longi- 

 tudinally obliquely wrinkle-plicate, rather glossy, whitish-buff. Spire 

 elevated-conic, the upper whorls more or less maculated with brown- 

 ish, apex rather acute. Whorls 6, a little convex, separated by an 

 oblique, appressed and submarginate suture, the last whorl large, 

 rather convex, somewhat tapering below. Aperture ovate-oblong, 

 nearly vertical, as long as the spire, whitish in the throat ; peristorne 



