340 APPENDIX. 



Length 43, diam. 11.5, aperture 13.2 mm. ; whorls 

 Length 56, diam. 12, aperture 14.8 mm. ; whorls 



CURVELLA MINUTA Da Costa. PL 50, figs. 29, 30, 31. 



Shell oblong-ovate, umbilicate, arcuately wrinkle-striate, 

 thin, chalky, white. Whorls 5%, convex, the last three-fifths 

 the total length. Aperture semioval; peristome simple, the 

 right margin arcuate, receding above. Columellar margin 

 straight, dilated and reflexed. Length 7.5, diam. 4.5, aper- 

 ture 5x2.5 mm. (Da Costa). 



Philippines: Malbato, Busuanga I. (Hungerford). 



C. minuta Da C., Proc. Malac. Soc. London, vii, p. 99, pi. 

 11, f. 12-14 (June, 1906). 



CURVELLA ALABASTRINA D>a Costa. PI. 50, figs. 27, 28. 



Shell oblong-ovate, umbilicate, thin, glossy, arcuately 

 wrinkle-striate, pellucid, whitish. Whorls 6, a little convex, 

 the last three-fifths the total length. Aperture oval. Peri- 

 stome simple, the right margin arcuate; columellar margin 

 straight, slightly receding, dilated and reflexed. Length 17, 

 diam. 9, aperture 9x4.5 mm. (Da Costa). 



Philippines: Guimaras (Hungerford). 



' C. aldbastrima, Da C., Proc. Malac. Soc. London, vii, p. 99, 

 pi. 11,1 10, 11 (June, 1906). 



P. 104. The generic term Zootecus has been changed on 

 etymological grounds to Zootocus by von Martens, Archiv 

 fur Naturgeschichte for 1895, p. 107, in text. Such emenda- 

 tion is considered not allowable by the majority of recent 

 zoologists. From the biological standpoint Zootecus is as 

 good as Zootocus. 



