26.9 



Oolumbella Hebraeu 



Columbella fulgurans 

 mendicaria 









llll 111 1 HJ.t 



punctata 

 unifascialis 





l zonal is. 



Columbells 



MITRA. 



voluta. papalis. — Linn. 



Mawes Linn.pl. 23, f. 7. 



This very numerous and extremely elegant genus so 

 obviously differs from the G. Voluta, that no doubt can 

 exist of the necessity and propriety of its being formed 

 into a separate genus, constituting a well denned and 

 naturally associated and elegant family. The following 

 strongdistinctive characters are pointed out by Lamarck, 

 all of which are peculiar to this genus, and clearly dis- 

 tinguish it from the G. Voluta. The summit of the spire 

 is always pointed, and never terminated in a papillary 

 form ; the plaits on the columella gradually diminish 

 in size towards the base ; the upper, consequently, are 

 larger than the lower; they are always transverse, and 



