GASTEROPODA. 21 



cavated. Yellowish brown, varied longitudinally with darker and 

 irregularly spotted with purplish brown on the ribs; interior yellowish 

 brown, coluinella white. Length, 475; breadth, 4; angle of spire, 

 120. Smaller and not so much spotted as Australian specimens. 

 From the North Cape to Tauranga. Australia. 



FAMILY VELUTINID^;. 

 Shell thin, ear shaped ; spire very small ; aperture very large. 



LAMELLARIA. 



Shell spiral, pellucid ; body whorl large, depressed ; columella 

 oblique, spiral : no operculum. 



Europe. Philippines. Australia. 



72. L. indica, Leach. Transparent, horny white. Length, '32 ; 

 breadth, 72. 



Islet Eeef, Cook Strait ; Cape Farewell. Australia. 



FAMILY NATICID.E. 



Shell globular or oval, spire short ; aperture semicircular ; animal 

 with a large foot much produced in front ; operculum spiral, horny, 

 sometimes covered with a shelly external coat. 



NATICA. 



Shell hemispherical, solid ; aperture moderate ; inner lip flattened ; 

 operculum large. 

 Widely spread. 



73. N. Zealandica, Quo//, Voy. Astrolabe, ii., p. 327. Shell 

 smooth, perforate, pillar visible in the umbilicus ; very finely trans- 

 versely striate ; inner lip callous ; operculum shelly. Yellowish or 

 reddish brown, with about six interrupted spiral chestnut brown 

 bands ; the spots generally lunate ; interior pale brown ; columella, 

 mouth, and interior portion of body whorl, white. Length, I'l ; 

 breadth, T05. 



Common. Chatham Islands. 



74. N. yitFGa, sp. nov. Shell polished, smooth ; perforated, 

 pillar not visible in the umbilicus ; operculum horny. White. Length, 

 35 ; breadth, '34. 



Stewart's Island and Chatham Islands. 



FAMILY SCALARID.E. 



Shell turreted ; whorls variced ; mouth entire ; operculum horny, 



spiral. 



SCALAKIA. 



Characters the same as the family. 

 Widely spread. 



75. S. ZGlcfoori, Dtmker, Novara, Zool. Shell accumiuate, im- 

 perforate ; whorls eight to ten, rounded, obsoletely spirally grooved ; 

 varices thin, without interrnedial striae, eleven to thirteen in a whorl ; 



