from New Guinea and the Solomon Islands. 417 



fuscescens vel purpureo-fuscescens, zona lata saturate fusoa paulo 

 supra peripheriam cincta, regulariter et confertim ' spiraliter stri- 

 ata, lineisque incrementi prope suturam subplicosis sculpta ; 

 aufractus 5, celeriter accrescentes, convexiusculi, suturam infra 

 impresse subiuarginati et nigrescentes ; ultimus maguus, paulo 

 inflatiis ; apertura parum obliqua ; peristoma tcnue, margine colu- 

 mellari supcrne breviter expanso, umbilicum angustum partim 

 obtegente. 

 Diam. max. 40 millim., min. 33, alt. 25. 



Hah. Foot of the Astrolabe and Owen Stanley Ranges. 



This species is peculiar on account of the regularity of the 

 close spiral striation which covers the entire surface both 

 below and above, with the exception of the few topmost 

 whorls. The brown band which encircles the body-whorl 

 falls a little above the middle, and, passing spii'ally upward, 

 produces a dark margination to the whorls. 



Nanina fraudidenta. 



Testa globoso-dopressa, anguste perforata, purpureo-fusca, epider- 

 mido tenui flavo-olivacoa induta, nitida, lineis incrementi striata ; 

 anfractus 6, convexiusculi, ad suturam anguste marginati, ultimus 

 rotundatus ; apertura parum obliqua ; peristoma tenue, prope 

 umbilicum paulo incrassatum, album et reflexum. 



Diam. max. 42 milim., min. 35, alt. 24. 



Hah. Foot of Astrolabe Mountains, New Guinea. 



This species, unless closely examined, might easily be 

 confounded with N. Hunsteini. The form and size are 

 almost similar, but the sculpture is different. This species 

 has no trace of the regular fine spiral stria3 which cover the 

 entire surface of N. Hunsteini. It also differs from that spe- 

 cies in having the spire a trifle more depressed, the body- 

 whorl less inflated, and in not having the distinct brown 

 band above the middle. 



Nanina Catrm. (PI. XV. fig. 5.) 



Testa perforata, supra pallide fuscescens, infra albida, nitida, lineis 

 incrementi minutis striata ; anfractus 5, paulo convexiusculi, 

 regulariter accrescentes, supra suturam leviter submarginati vel 

 depressi, ultimus ad peripheriam subacute angulatus, infra angu- 

 lum fuscescens, convexus, in medio albidus, minute concentrice 

 undulatim striatus ; apertura obliqua ; peristoma tenue, margine 

 columellari vix incrassato, superne supra umbilicum breviter 

 reflexo. 



Diam. max. 36 millim., min. 31, alt. 20. 



Hab. Foot of the Astrolabe and Owen Stanley Mountains, 

 British New Guinea. 



