120 POSSIL FAUNA. 



PLATE L. — continued. 



Fig. 6. A receptacle, in which a few of the ossicula of the arms remain attached to the margin. 



Fig. 7. Another receptacle, in which the plates called by Mr. Parkinson " clavicles and scapulse," 

 are retained in their natural positions. 



Fig. 8. A receptacle, in which the principal plates are well defined : these are named by 

 Mr. Parkinson as follow : a, clamcle ; b, scapula ; c, ossicula of the arms ; d, the last 

 series of the same. The ossicles forming the elongated tentacula, Mr. P. termed 

 " hones of the fingers." 



Fig. 9. Portion of an encrinital stem with digitated processes: the nature of this fossil is 

 unknown to me. 



FiG. 10. Three united ossicula of a Pentacrinite with depressions for side-arms : from the 

 Lias of Lyme Regis. 



Fig. 11. A distorted pentacrinal ossicle; said to be from Africa. 



Figs. 12, & 14, are vertical polished sections of the peduncle, or base of the stem, of the Bradford 

 Encrinite. 



Fig. 13. Vertical section of the peduncle of a Pentacrinite from Soissons. 



Fig. 15. a polished slab of pentacrinal marble from Charmouth, Dorsetshire. 



Fig. 16. Variously contorted pentacrinal stems with numerous side-arms, from Charmouth. 



