CURVELLA, PHILIPPINES. 69 



40. C. BREVIS (Quadr. & Mlldff.). 



Shell imperforate, ovate-oblong, finely arcuately striate, 

 somewhat shining, hyaline. Spire moderately elevated, the 

 sides a little convex, the apex obtuse. Whorls 6, a trifle con- 

 vex. Aperture slightly oblique, rounded-rhombic; peristome 

 unexpanded, acute ; columella strongly twisted, callous, ap- 

 pressed above. Length 8.6, diarn. 4.5 mm. (Mlldff.). 



Philippines: Bohol. 



Hapalus brevis QUADRAS & MLLDPF., Nachrbl. D. M. Ges., 

 xxviii, p. 87 (August, 1896). 



41. C. QUADRASI (Mollendorff) . 



Shell very narrowly and half-covered perforate, ventricose- 

 fusiform, thin, pellucid, arcuately striatulate, pale straw- 

 colored. AVhorls 7, slightly convex, separated by a suture 

 somewhat appressed and marginated, the last whorl a little 

 more convex and descending forwards. Aperture slightly 

 oblique, truncate-oval; peristome simple, acute, the upper 

 margin receding a little towards the insertion; columellar 

 margin reflexed, dilated above, nearly closing the perforation. 

 Length 14.5, diarn. 5.75 mm. (Mlldff.). 



Northern Luzon, at the villages Magapig, Alcala, Gattaran 

 and Napayacan (Quadras). 



Hapalus quadrasi MLLDPF., Nachrbl. d. Mai. Ges., 1893, 

 p. 177. 



42. C. SCALARIS (Quadr. & Mlldff.). 



Shell rimate, rather ventricosely turrited, thin, transversely 

 very lightly striatulate, decussated with very close spiral 

 lines, hirsute \vith a very short pile, visible under a strong 

 lens, silky, pale straw-colored. Spire much lengthened, reg- 

 ularly conic, gradate, the apex obtuse. Whorls 8, moderately 

 convex, separated by a deeply impressed suture. Aperture 

 but little oblique, elongate, roundly rhomboidal, peristome 

 simple, unexpanded, the outer margin moderately arcuate, 

 columellar margin dilated above, a little reflexed. Length 

 18.5, diam. 7.5 mm. (Mlldff.}. 



