NANINA. 20 



N". sToLKrEioRA, Val. PI. 7, fig. 17. 



Subperforate, rather smooth, obliquely striate, very light red- 

 dish brown, with a broad reddish band below the peripheral 

 angle, base lighter, reticulately striate ; whorls 4. 



Diam. 52, alt. 20 mill. 



Philippines. 



It is N. buphthalmus, Fer., and N. bicolor, Pfr. 



N. SAGITTIFERA, P!r. PI. 7, figs. 18-20. 



Subperforate. depressed, thin, pellucid, obliquely striate and 

 obsoletely rugose; brown, with chestnut-colored arrow-shaped 

 maculations and obsolete band at the peripheral angle ; whorls 

 4J, suture impressed, canaliculate at the last whorl; aperture 

 white. Diam. 47, alt. 26 mill. 



Var. HEPATICA, Reeve. Fig. 20. 



More distinctly carinate, chestnut brown above, with a black- 

 ish band below the carina, base olive-brown, arrow-shaped macu- 

 lations obscure. 



Yar. MAJOR, Pfr. 



Thicker and larger. Diam. 67, alt. 35 mill. 



N. BORNEENSIS, Pfr. PI. 8, fig. 23. 



Narrow!}- umbilieated, the umbilicus partly covered by the 

 dilated columellar lip, decussately striated, chestnut-brown ; 

 whorls 4, the last one obtusely angulated on the periphery with 

 a dark chestnut band below the angle, base sometimes irregularly 



strigate with chestnut. Diam. 52, alt. 25 mill. 



Borneo. 

 N. DVITIJA, Semper. PL 8, fig. 24. 



Subperforate, solid, shining, yellowish brown, greenish at the 

 suture and base, closely irregularly sculptured with small rugae, 

 with remote concentric strife ; whorls 4, suture subplicate, 

 periphery rounded ; peristome with a narrow dark exterior 

 marginal zone ; columella subplicate or twisted. 



Diam 44, alt. 26 mill. 



Ins. Luzon, Philippines. 

 N. SOWERBYANA, Pfr. PI. 8, fig. 25. 



Subperforate, solid, somewhat shining, subdecussated by close 

 concentric, and more distinct incremental striae ; olivaceous 



