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MITRA scabr^i. 

 TAB. €C€CL 



Spec, Char. Ovato-fusiform^ rough with de- 

 cussating striae ; lip thickened, with one 

 obtuse tooth upon its margin. 



Syn. Buccinum scabricalum JBrander^f. 20, 



Sharp, elevated, transverse striae, crossing many irregu- 

 larly elevated undulations and lines of growth, render 

 this a rough shell ; the principal folds upon the colu- 

 mella are four, not very unequal in size ; above them are 

 two slender ones, which however are often wanting : 

 the thick lip is reniiirka'ole, especially as it is so irregu- 

 larly thickened, that the part opposite the two smallest 

 plaits, is thinner than any other; and immediately below 

 it is so thick as to form a kind of blunt tooth : in this 

 it agrees with Mitra monodonta of Lauuirck, a very si- 

 milar but smooth fossil : the apex of the spire consists 

 of two smooth whorls, and is nearly globular, being the 

 form of the shell ju the eg^ ; M. monodonta has the 

 same conformation. When young the lip is thin. 



A common siiell at Barton ; the Rev. T. Cooke 

 faivored me with the use of a particularly perfect speci- 

 men, from which the larger figures are taken. It is 

 very different from the Voluta (Mitra) scabricalum of 

 Gmelin, to which Brauder has referred. 



