268 OAM^ENA. 



face irregularly marked with wrinkles of growth. Spire convex- 

 conoidal, composed of 5i, convex whorls ; the last well rounded, 

 somewhat descending in front. Aperture oblique, fleshy-white within, 

 the columella white, more or less truncated below ; peristome 

 dark brown, well expanded in every part, the basal lip bearing an 

 elongated white denticle in the middle, sometimes obsolete. 



Alt. 40, diam. 34 mill. 



Alt. 33, diam. 32 mill. 



Mindoro, Philippine Is. 



Helix (Helicostyla) brachyodon SOWB., P. Z. S. 1840, p. 89. 

 REEVE, Conch. Icon., f. 79. Bulimus brachyodon PFR., Symb. ii, 

 p. 43 ; Conchyl. Cab., p. 203, t. 57, f. 8, 9 ; Monogr. ii, p. 77. 

 DESH. in Fer., Hist., t. 108B, f. 3, 4. 



The typical brachyodon is far smoother than C. arata, and is more 

 globose in contour. The columellar truncation and basal tooth are 

 also valuable differential characters, when developed. 



Var. NAUJANICA Hidalgo. PI. 18, figs. 6, 7. 



More elongated than typical brachyodon, darker in color, and 

 much malleated on the last whorl; lip blackish, toothless; umbilical 

 patch blackish. 



Alt. 44-46, diam. 30-32 mill. 



Naujan, Island of Mindoro, Philippines. 



Bulimus brachyodon var. ? MORCH, Cat. Kierulf, t. 1, f. 4. 

 Cochylostyla naujanica HID., Journ. de Conch. 1887, p. 171 ; 1888, 

 t. 4. f. 1 ; Obras Mai. i, p. 33, 34. Cf. MLLDFF., Nachr. D. M. G. 

 1888, p. 74. 



C. ADUSTA Sowerby. PI. 18, figs. 8, 9. 



Shell cyclindrical, elongated, narrowly umbilicated, solid, smooth. 

 Tawny-brown, becoming lighter on the spire, but retaining a dark 

 band above the sutures. Whorls 6J, the last descending in front. 

 Aperture small, oblique, the peristome widely expanded, reflexed, 

 dark brown. Columella light, truncated below. 



Alt. 40, diam. 22 mill. 



Mindoro, Philippines. 



Helix (Helicostyla /) adusta SOWB., P. Z. S. 1840, p. 89. REEVE, 

 Conch. Icon. Helix, t. 19, f. 77. Bulimus adustus PFR., Conchyl. 

 Cab., p. 204, t. 57, f. 11. DESH. in Fer., Hist., t. 108B, f. 13, 14. 

 Cochlostyla adusta Auct. 



