HELIX-SATSUMA. 199 



H. SCALATELLA v. Molleiidorff. 



Shell rather openly umbilicated, depressed, thin, obliquely stri- 

 atulate, horny-brown. Whorls 4, flat above, obtusely angulated at 

 the periphery, subsolute, forming a depressed scalariform spire, the 

 last whorl more convex beneath, deflexed in front, shortly solute. 

 Aperture oblique, rounded-rhombic, with four coarctate teeth, one 

 longer on the parietal, with short ones on the outer, basal and col- 

 umellar margins (Mlldff.') 



Alt. 1-75, diam. 2*5 mill. 



Village ofAntipolo, Province of Manila, Luzon. 



Helix scalatella MLLDFF. Nachr.-bl. d. m. Ges., 1888, p. 145. 



H. AZPEITI^ Hidalgo. PL 54, fig. 93. * 



Openly umbilicate, convex depressed, thin, slightly striatulate, 

 not shining, a little pellucid, corneous-brown. Spire irregular, 

 depressed scalariform, the apex rather acute ; suture simple ; 

 whorls 5, flat above, obtusely angled at the periphery, the angle pro- 

 jecting above the suture. Last whorl convex beneath, rounded or 

 slightly angled at the periphery, not deflexed in front, not solute ; 

 subconstricted behind the aperture. Aperture subrotund, having 5 

 pliciform teeth, one on the parietal wall long and oblique, another 

 on the columella, transverse, the others are smaller, nodular, situ- 

 ated on the basal and outer margins, sometimes wanting; peristome 

 simple, expanded, the margins approaching, joined by a very thin 

 callus, the right margin elongated and horizontally adnate above, 

 very obtusely angulate ; colurnellar margin elongately dilated at 

 the insertion (Hid.). 



Alt. 2, diam. 3 mill. 



Penon de Bintuan, Busuanga, Philippines. 



Helix azpeitice HIDALGO, Obras mal. i, p. 120, 1. 1, f. 10. 

 Section SATSUMA Adams (Vol. Ill, p. 217). 



H. EUMENES Westerlund. PI. 53, figs. 86, 87, 88. 



Shell openly and deeply umbilicated, globose-conic, rather thin, 

 whitish, obliquely striatulate, under a lens seen to have dense 

 spiral lines. Spire exserted, convex conic, slightly obtuse, some- 

 what terraced, the suture rather deep. Whorls 6, regularly 

 increasing, slightly convex, the last rounded, descending in front 



