from Ni'.xo Ouinea and the Solomon Islands. 423 



form of //. Taylorianay and resembles it considerably in form 

 and sculpture, and, indeed, it may eventually have to be 

 regarded as an albino variety of that form. The central keel 

 is rather sharper and the texture more transparent than in 

 H. Tayloriana. 



Helix {Pajmina) Rollsiana. (PI. XV. fig. 3.) 



Tosta imperforafca, conoideo-subglobosa, albida vel rubescens, prope 

 suturam fusco notata, zonis fuscis diverse cincta, pone labrum 

 aurantio strigata ; anfractus 5, convexiusculi, striis obli(iuis con- 

 fertis rugosis incrementique lineis sculpti, ultimus ad peripheriam 

 antice siibrotuudatam, pone obtuse carinatam semper albo zonatus, 

 inferue purpureo-roseo tinctus, antice breviter et subito descen- 

 dens ; apertura obliqua, subquadrata ; peristoma album, tenue, 

 late expansum et reflexum, margine superiore einuato, columel- 

 lari dilatato, appresso. 



Dium. max. 30| millim., min. 21|, alt. 20. 



Hah. South Cape, British New Guinea. 



The colour of this very pretty species in some respects 

 appears to be very constant, whilst in other points it is vari- 

 able. The periphery in the four specimens at hand is encircled 

 by a more or less broad white zone, and the body-whorl always 

 exhibits an orange stripe just behind the broadly expanded 

 lip, which is constantly white. Another persistent feature is 

 the purplish rosy portion of the base between the umbilical 

 region and the extremity of the outer lip. The ground-colour 

 of the shell is usually whitish or of a pinkish tint, and some- 

 what freckled with minute oblique opaque white dots and 

 lines, and the apex may be white or blackish. The spiral 

 bands are rather variable, numbering from one to three above 

 the periphery and two to four below it. The sculpture is of 

 the same character as that of H. Tayloriana. I have named 

 it, at Mr. Brazier's request, after Mr. Rolls, who, accompanied 

 by Mr. Goldie and others, whilst exploring certain parts of 

 New Guinea, collected these specimens. 



Helix [Trocliomorpha) Belmorei, var. 

 (PI. XV. tigs. 8, 8 a.) 



Testa late et perspective umbilicata, depresse conico-orbicularis, 

 mediocriter crassa, corneo-fusca, infra peripheriam pallidiorem 

 zona lata saturate fusca ornata ; anfractus G, planiusculi, vix con- 

 vex!, oblique striati, supra suturam compressi, concavi, rcgulariter 

 accresccntes ; ultimus in medio acutissimo carinatus et com- 

 pressus, inferne paulo convexus, antice hand descondens ; umbili- 

 cus latus, profundus ; apertura horizontalis, intus albescens ; 



