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- rhombi c ; peristome 

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

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



Philippines: Bohol. 



Hapalus brevis QUADRAS & MLLDFF., 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. "Whorls 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, diam. 5.75 mm. (Mlldff.). 



Northern Luzon, >at the villages Magapig, Alcala, Gattaran 

 and Napayacan (Quadras). 



Hapalus quadrasi MLLDFF., 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 with 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.). 



