GASTEROPODA. 37 



anterior portion toothed or smooth ; axial cavity deep, smooth, conical. 

 White, with brownish purple dots both on the upper surface and on 

 the base; axial cavity white. Length, - 45 ; breadth, '6; anglo of 

 spire, 75. 



Common. A very variable shell. 



* 15S. P. trlcarinata, LamarJc, Anlm. snn.'} vert., ix., p. 180. 

 Shell globose, conoid, i in perforate, transversely keeled and gramilosely 

 sulcate. Reddish, spotted with white and black ; whorls convex, the 

 last circled with three distinct keels; spire short. Diameter, "9. 

 (Lamarlt?) 



LAB1O. 



Conical, ovate, solid, grooved, and often granulated ; aperture 

 roundish ; coluniella thick, rounded, with a slight prominence or 

 tubercule in front ; operculum horny, many-whorled. 



Bed Sea. India. Australia. Pacific. 



159. L. SSalandiCllS, Qo>/, I.e., iii., p. 257; Ilonodonta reticu- 

 laris, Gray, Di^if- N.Z., ii., p. 288. Sub-globose, whorls spirally dis- 

 tantly grooved and obliquely striated ; rough when not worn. Pur- 

 plish black or purple, spirally tesselated Avith white ; mouth purplish 

 black, outside of columella brownish ; when not rubbed, brownish 

 purple. Length, 1; breadth, 1'2. 



Very common ; variable in shape, the spire being sometimes much 

 depressed. 



160. L. hectori, sp. nov. Sub-globose, conical, roughish. Pur- 

 plish black ; the spire when eroded dark green ; anterior portion of 

 body whorl yellow ; mouth yellow, Avith a thin purple ring inside. 

 Length, '75 ; breadth, "8. 



West Coast of the South Island. 



161. L. CingulatUS, Quoy, I.e., iii., p. 259 ; Monodonta angula- 

 tum, Gray, Dirff. N.Z., ii., p. 238. Depressed, conical, with spiral 

 granular ribs. Black, the ribs with a few yellowish spots, aperture 

 white. Length, - 3 ; breadth, '5. 



Common. 



* 162. L. SllbrOStrata, Gray, Dieff. N.Z., ii, p. 238. Shell 

 conical, sub-orbicular, solid, black, with close Avavy longitudinal yellow 

 lines ; spire short, Avhorls five ; last large, rounded, hinder part with 

 three to six spiral keels ; axis iinperforated ; throat smooth and 

 silvery. (Gray.} 



EUCHELUS. 



Turbinated, sub-globose ; Avhorls with granulated spiral ribs ; often 

 perforated ; columella Avith a small tooth in front ; outer lip thick, 

 internally crenated ; operculum sub-circular, of few rapidly enlarging 

 whorls. 



1G3. E. bellllS, sp. nov. Small, imperforate, anterior end of 

 columella with a deep notch. Pinkish white varied Avith darker ; inside 

 white, pearly. Length, '25 ; breadth, '25. 



Chatham Islands only. 



