AMPHIDROMUS, GROUP I. 131 



purple and more or less dappled with white and dull purple by dis- 

 location of the streaks, which on the median whorls of the spire are 

 typically zigzag, but often straight; the apical whorls white or with 

 a blue-black band above the suture. Whorls 6^, convex. Aperture 

 oblique, the streaks or spots showing darkly through; peristome 

 white or creamy, expanded and reflexed, thickened and slightly re- 

 curved at the edge ; columella heavy, straight, its edge broadly di- 

 lated above, nearly covering the umbilicus; parietal callus thin, 

 whitish-transparent. 



Alt. 62, diam. 28 mill. (Sowerby's figure). 



Alt. 57, diam. 28, longest axis of aperture 28 mill. 



Alt. 60, diam. 31, longest axis of aperture 31 mill. 



Mindanao : province of Misamis, on trunks of trees (Cuming, Sem- 

 per). 



Bulimiis maculiferus SOWERBY, Conch. Illustr., p. 8, fig. 100 

 (1841) BRODERIP, P. Z. S., for 1841, p. 14 (Sept., \%\).Buli- 

 mus perversus e PFR., Monogr. ii, p. 38. B. maculiferus Sowb., 



REEVE, Conch. Icon. pi. 6, f. 26 PFR., Zeitschr. f Malak., 1849, 



p. 134; Conchyl. Cab. p. 117, pi. 36, f. 1, 2; Monogr. iii, p. 319; 

 iv, p. 381 ; vi, p. 25; viii, p. 39. Amphidromus maculiferus SEM- 

 PER, Reisen im Archip. Phil., iii, p. 146, 148, pi. 14, f. 1 (genitalia). 

 FULTON, Ann. Mag. N. H. (6), xvii, p. 74 MOELLENDORFF, 

 Abhandl. Naturforsch. Ges. Gorlitz, xxii, 1898, p. 149. HIDALGO, 

 Obras Malacologicas, in Mem. Real Acad. Ciencias.xiv, pi. 100, f. 1-6. 



The original figures, like Hidalgo's f. 5, 6. show a distinctly 

 spotted form (fig. 19), with rather faint streaks, but the ordinary 

 specimens are rather profusely streaked with purplish-brown and 

 less spotted, as in fig. 21, or the figures of Reeve (fig. 20) and 

 Pfeiflfer, and Hidalgo's figs. 1-4. 



Var. OBSCURUS Fulton. 



" In form like typical maculiferus, but of a dirty white color, ob- 

 liquely striped and sparsely spotted with faint reddish-brown. 

 Apical whorls filleted as in slrigata." Occurs both dextral and sini- 

 stral. Mindanao. 



B. maculiferus var. g, PFR., Monogr. iii, p. 319. A. m. var. 

 obscura FULTON, t. c., p. 75. 



Subsp. MULTICOLOR v. Moellendorff. 



Smaller ; yellowish with streaks of light red, brown and greenish^ 

 usually flammulate. 



