68 BOOK OF SPECIES. 



large obtuse distant tubercles on the lower margin 

 of the whorls ; beneath flat, concentrically Imeated 

 with green ; imperforate. 2f . . . 2^, W. 30. 1 10. 



T. OBELiscus. Conic -pyramidal, nodulous 

 and granulated, coloured with green and white ; 

 whorls with many circles of granulations, and their 

 lower margin nodulous with tubercles; base white, 

 flat, and concentrically striated; pillar grooved and 

 twisted ; inside pearly. 2| . . . 2f . W. 30. 109. 



T. viRGATUs. Conical -pyramidal, sub -in- 

 flated in the middle, granulous, with alternate red 

 and white longitudinal streaks, and transverse 

 granulous striae ; beneath flattish concave, trans- 

 versely furrowed, and painted with red lines ; 

 pillar short, arcuated, not prominent; no umbi- 

 licus. 2...2J. W. 30. 111. 



T. MACULATUS. Conic-pyramidal, nodulifer- 

 ous, mottled with green rose-colour and white, 

 with transverse thickish noduliferous furrows ; 

 beneath flattened ; a false umbilicus, and concen- 

 trical lines of granulations spotted with rose- 

 colour ; lip furrowed ; pillar strongly crenulated. 

 H...l|. W. 28. 5. 



T. ziczAC. Sub-conical, transversely striated, 

 and the body-whorl flattened in the middle ; aper- 

 ture roundish, whitish, with longitudinal brown 

 zigzac streaks, |, or bluish black, with the white 

 zigzacs interrupted in the middle. J. Front. 6. 



