72 BOOK OF SPECIES. 



vated scales ; mouth golden ; diam. If. W. 30. 

 23. 



T. PETHOLATUS. Ovate, imperforate, smooth, 

 shinmg, greenish or reddish chestnut, variously- 

 mottled, with transverse bands of dark brown and 

 white, and longitudinal stripes ; whorls rounded, 

 obtusely angulated above ; pillar orange ; mouth 

 silvery. 1|...1|. W. 30. 18. 



T. PICA. Conical, smooth, thick, white, with 

 black longitudinal spots or streaks ; whorls five, 

 rounded, with an obsolete groove beneath the 

 suture ; mouth silvery ; umbilicus toothed at its 

 margin. 2...21. W. 31.65. 



T. MURICATUS. Ovate -conic, perforated, 

 ashy lead-colour, with crowded transverse rows 

 of raised beads ; spire acute ; mouth smooth, and 

 chestnut, f . W. 30. 8. 



T. PUNCTATUS. Ovate-acute, with six de- 

 pressed whorls, the last double the length of the 

 rest united ; smooth, shining, greyish lead-colour, 

 covered all over with white dots ; chestnut within ; 

 the spire mucronate. yV* Front. /• 



T. LiTTOREUS. Ovate, apex acute, imper- 

 forate, transversely striated, dull dark-brown, but 

 when young often variegated and banded ; margin 

 of pillar flat and white; mouth dark. |. B. 

 W. 30. 5. 



T. NERiTOiDES. Scmi-globosc, imperforate, 



