340 APPENDIX. 



Length 43, diam. 11.5, aperture 13.2 mm. ; whorls Iiy 2 . 

 Length 56, diarn. 12, aperture 14.8 mm. ; whorls 12y 2 . 



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



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

 thin, chalky, white. Whorls 5y 2 , convex, the last three-fifths 

 the total length. Aperture semioval; peristome simple, the 

 right margin arcuate, receding above. Colurnellar 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 Da Costa. PL 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. alabastrima Da C., Proc. Malac. Soc. London, vii, p. 99, 

 pi. 11, f. 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. 



