NANINA. 73 



yellow-orange or reddish violet, often dark banded, with an 

 opaque white zone at the periphery and another at the suture ; 

 whorls 5, periphery rounded. Diam. 39, alt. 22 mill. 



Amboina, Ceram, Burn. 



N. variegata, Humph., and N. atrorubra, Lesson, are synonyms. 



The varieties include : 



Yar. TYPICA. PL 20, fig. 89. 



Yellowish or violaceous brown, with or without peripheral 

 band, sometimes violaceous brown above, yellow below. 



Yar. TIARA, Beck. PI. 20, fig. 92. 



More elevated, violet-brown, with darker band, the white 

 bands very distinct. 



Yar. COLUMELLARIS, Beck. PI. 20, figs. 91, 95. 



Rather thick, sculpture strong, spire elevated ; yellowish or 

 flesh-yellow, banded, usually violet-brown around the umbilicus. 



Yar. AURANTIA, Martens. PL 20, figs. 88, 90. 



Orange-colored, often changing to violaceous above, the white 

 bands well marked, with usually a narrow dark peripheral band, 

 umbilical region darker colored. 



Yar. PR^ETEXTA, Martens. PL 20, tig. 93. 



Yellowish, with two strong chocolate bands, one below the 

 periphery, the other on the upper part of the whorl, and showing 

 on the spire, peripheral white band strong. 



Yar. OPACA, Martens. PL 20, fig. 94. 



Thin, scarcely shining, weakly sculptured, last whorl obtusely 

 angulated ; citron-yellow, the white banding distinct. 



Yar. COAGULATA, Pfr. 



Yellowish white or alabaster-white, with a faint pellucid 

 sutural band, and an obscure white band on the obtusely angled 

 periphery, the latter sometimes wanting; spire conical. Dr. 

 von Martens considers it an albino. 



N. AULICA, Pfr. PL 20, figs. 96-100. 



Narrowly perforated, thin, striated by growth-lines, with 

 usually a few light spiral impressed lines above, diaphanous, 

 shining ; yellowish to purple-brown, unbanded, or with a strong 



