110 NANINA. 



Yar. SCHISTOSTELIS, Benson. PI. 37, figs. 89-90. 



Urabilicated, thin, irregularly striulate, very closely spirally 

 striate above, translucent, light corneous, shining ; whorls 4^-5-J, 

 suture margined. Diam. 11-16, axis 6'5-8'5 mill. 



N. FORABILIS, Benson. PI. 37, figs. 91, 92. 



Umbilicated, thin, corneous, shining, with thread-like very 

 close incremental striae, and faint or obsolete spiral lines on the 

 upper whorls ; whorls 5-5^, suture scarcely channeled. 



Diam. 8'8, alt. 5'8 mill. 



Damotha near Moulmein, Burmah. 



Perhaps this and the next species are only varieties of N. 

 G alias. 



N. CONJUNGENS, Stoliczka. PI. 37, figs. 93, 94. 



Moderately umbilicated, thin, semipellucid, with minute incre- 

 mental and spiral striae, sometimes obsolete ; corneous, nearly 

 l^aline in young specimens ; whorls 5-5^, suture scarcely chan- 

 neled, umbilical carina obtuse, indistinct, sometimes nearly 

 obsolete. Diam. 11'6, alt. 7'2 mill. 



Near Moulmein, Burmah. 



Section EUBYPUS, Semper, 1870. 

 N. OASCA, Gould. PL 37, figs. 96-98. 



Narrowly perforate, rather solid, smooth, shining, brownish 

 flesh-color, suture chestnut margined ; whorls 5J, the last 

 obsoletely angulated. Diam. 18, alt. 10 mill. 



Viti Islands. 



Helix calva, Gould, non Lowe, and H. Vitiensis, Pfr., are 

 synonyms. 



N. SIMILIS, Semper. PL 37, fig. 99. 



Perforate, solid, striulate ; brownish corneous, without sutural 

 band, scarcely shining ; whorls 5J, the last very obsoletely angu- 

 lated. Diam. 17, alt. 10'25 mill. 



Viti Islands. 



It has been confused with N. casca, Gould, from which it is 

 distinguished by the want of the brown sutural band, the less 

 shining surface, the more globose form, and scarcely apparent 

 angulation. I think it merely a variet}' of N. casca. 



