62 BOOK OF SPECIES. 



P. DOLABRATA. Conical, turreted; suture 

 strongly marked ; whorls smooth^ white^ convex, 

 and girded by yellow spiral lines ; pillar twisted ; 

 outer lip of adult specimens toothed ; the teeth 

 prolonged. 1^. E. 452. 2. 



P. PLicATA. Ovate-oblong, solid, with smooth 

 longitudinal plaits, white, with transverse series 

 of reddish -brown spots; the interstices of the 

 plaits transversely striated ; the last whorl shorter 

 than the slightly turgid spire ; mouth small ; no 

 umbilicus. |...f. W. 20. 119. 



P. MACULOSA. Turreted, subulate, longi- 

 tudinally striated, white, with reddish scattered 

 spots and dots; whorls numerous; body-whorl 

 much shorter than the spire; when young smooth. 

 J ... 1. E. 452. 1 ab. 



LES SCALARIENS. 



VERMETUS. 



Thin, tubulose, loosely spiral in the lower part ; 

 three or four upper volutio7is regularly spiral; 

 attached to other substances by the apex of the 

 ■spire; aperture round; margins united and 

 operculated. 



V. LUMBRiCALis. Variously twisted, rcddish 

 brown, sometimes clouded with a darker brown. 

 2 to 3. W. 38. 21. 



