PULMONATA. 



Ill 





103. Naxina biangulata. 



Shell subperforated, scalaiiform, thin, horny-rubelline, faintly 

 striated, rather shining ; whorls seven, gradually increasing, the 

 last bicarinate ; lower keel thread-Hke at the margin, the higher 

 passing through all the whorls ; aperture lunate-oval ; peristome 

 simple, acute, almost hiding the very nan-ow perforation. Lat. 

 maj. 15, miu. 13*, alt. 9 mill. 



Hehx biangidata, Pfr. in Phil. Icon. i. 7- p- 155. t. 5. f. 12 ; Proc. 

 Zool. Soc. 1845, p. 40 ; Mon. Helic. i. 80; Ic. ii. 125. 

 Chemn. ed. 2, Helix, n. 550. t. 88. f. 6, 7- 

 Reeve, n. 157. t. 35. 

 Alb. 118(Thea). 

 Hab. Luzon, Philippines. 



104. Nanina filocincta. 



Shell perforated, depressed, thin, pellucid, homy, striatulate, 

 bright ; spire scarcely elevated, obtuse ; whorls five and a half, 

 slightly convex, keeled, the last convex beneath ; keel thread- 

 like, conspicuous on the higher whorls, but not exserted ; aper- 

 ture vertical, somewhat ear-shaped lunar; peristome simple, 

 straight, columellar margin very oblique, elongated, descending, 

 suddenlv ascending on the right. Lat. maj. 11, min. 10, alt. 6^ 

 miU. 

 Hehx filocincta, Pfr. Proc. Zool. Soc. 1845, p. 124 ; Mon. Helic. 



i. 82 ; Ic. ii. 127. 



Chemn. ed. 2, Helix, n. 553. t. 88. f. 24-26. 

 Reeve, n. 158. t. 36, 

 Nanina (Xesta) filocincta. Alb. 59. 

 Hab. Mindanao, Phihppines. 



105. Nanixa excentrica. 



Shell subperforated, nearly level above, inflated beneath, thin, 

 waxen, shining, slightly ridged with excentric striae, acutely 

 keeled ; whorls four, plane above, rapidly increasing ; aperture 

 hatchet-shaped ; peristome simple, acute, (hlately reflected at the 

 very narrow perforation. Lat. maj. 18, min. 15, alt. 8^ mill. 



Hehx excentrica, Pfr. Proc. Zool. Soc. 1845, p. 41 ; Mon. Helic. 

 i. 83. 



Chemn. ed. 2, Helix, n. 552. t. 88. f. 14-16. 



Reeve, n. 152. t. 34. 



Alb. Ill (Corasia). 

 Hab. Philippines. 



