ENCRINITRS AND TRILOBITES. 



305 



the Crinoidal, or lily-shaped animals, so called from a fancied re- 

 semblance to a lily, they are somteimes termed Encrinitzs. We 

 here figure two specimens, one closed and the other open. There 



are a very great many varieties of encrinites, some of the most 

 beautiful occur in the new red sandstone group, figure 1, is 

 called the pear encrinite, fig. 2, the tuberculated; they consist es- 

 sentially of a stony case, supported on a slender jointed stalk, 

 and are found in all positions and in immense numbers, but they 

 are of a much higher organization than the coral polype. An- 

 other very peculiar fossil of this epoch is the trilobite, so called 

 from the body consisting of three distinct lobes. We here repre- 

 sent one of these animals; they are found in abundance in the 





older strata, and of many distinct generic forms; they probably 

 possessed sliDrt legs and were destitute of antennae, the eye how- 

 ever, was the most remarkable feature. It was immovable, but to 

 compensate for this it was exceedingly prominent and provided 

 with many hundred lenses, precisely similar to the eye of the 



