DESCRIPTION. 147 



distinct pale brown bands, and longitudinal waved 

 streaks, somewhat tessellated with obsolete lines 

 and brown dots at the points of section ; lengthened 

 spots on the outer lip dark brown. 



Inhabits the American, Indian, and Mediterra- 

 nean seas. 



The Linnaean species Erinaceus and Vihex are 

 so obviously the same, and pass so imperceptibly 

 from the plaited and crowned to the even surface, 

 that the characters of both have been here united 

 under the title Vihex, as most appropriate. The 

 figured specimen is an exact link between them, 

 the upper whorls and great part of the inferior one 

 being perfectly smooth, the plaits and papillae ex- 

 tending but a very little distance from the outer 

 lip. In plate XXIV the young shell is given, 

 which by its marking is an Erinaceus; by its form, 

 a Vilex. The peculiar black spot at the extre- 

 mity of the Cauda is a sufficient proof of their 

 identity. 



Fig. 4. B. Pidlus. 

 Shell gibbous, obliquely striated. 

 Lister Conch, tab. 971. fig. 2G. 

 l2: 



