104 BOOK OF SPECIES. 



body-whorl with four rows of nodules; mouth 

 orange ; lip furrowed within. 2. W. 22. 57. 



P. MANCiNELLA. Ovatc-ventricose^ thick, ful- 

 vous or flesh -colour, with transverse grooves, 

 and four rows of blunt spines; spire conic, acute; 

 mouth yellowish orange ; lip with elevated red 

 striae within. 2^. AV. 25. 52. 



P. NERiTOiDES. Ovatc-abbreviated, ventri- 

 cose, thick, transversely striated, dirty white ; 

 body-whorl with four rows of nodose tubercles ; 

 spire very short and obtuse ; pillar flattened, with 

 two unequal black spots in the middle; mouth 

 white and smooth. If. W. 26. 49. 



P. SERTUM. Ovate-oblong, with transverse 

 crenulated striae, crossed by longitudinal impressed 

 lines, reddish, fawn, or chestnut, with a paler 

 band apparently composed of longitudinal broad 

 spots on the body-whorl; whorls rounded, de- 

 pressed above ; pillar fulvous, with a plait opposite 

 the tooth at the summit of the inner margin of 

 the lip, which latter is smooth and white, with 

 another tooth at its base. 2 J. W. 23. 65. 



P. LAPiLLUS. Ovate-acute, transversely stri- 

 ated, dirty white or yellowish, sometimes zoned 

 with brown or yellow, when perfect with mem- 

 ])ranaceous longitudinal wrinkled striae, but is 

 generally worn smooth ; spire conic ; lip slightly 

 toothed within. B. l^. W. 23. 62. 



