42 



Ne*w Species of Trilobite. 



12.), which, I believe, has not yet been particularly noticed, 

 arising, probably, either from their scarcity, or from the im- 

 perfect condi- 



tion m which 

 they are usually 

 found, the head 

 and tail being 

 generally apart. 

 The points of 

 difference in the 

 Dudley Trilo- 

 bites may be 

 seen by the 

 accompanying 

 sketches, which 

 are taken from 



specimens in my possession. (Seejf%5. 11, 12.) Mr. Pay ton of 

 Dudley has been at the pains of having siniilar fossils drawn 

 upon stone, in a masterly manner, by Mr. G. Scharf, which 



also represent their differences most satisfactorily. These have 

 a crustaceous covering, and twenty-four transverse lines or ribs 

 across their lobes. 



The Trilobite from Barr, which I have in my possession, 

 has a very remarkable appearance, and differs in so many 

 respects from the Dudley Trilobites, that it can scarcely be 

 classed with those fossils. It has ten transverse lines across 



