VIII ECHINOVERMATA—SYSTEMATIG REVIEW 311 



\yith root-like processes at its base, or -with iiregularly arranged cirri ; its proximal 



P 



Hlf//(M/>/>^4^ . 



Fig. 257.— Metaorinus Murray! (after P. H. Carpenter). Most of the arms and tlie larger part 

 of the .stem broken off. p, Pinnute ; a, cirri : iij, node. 



ossicle usually enlarged. Upper Jurassic, Chalk, Tertiary, Eecent. Rhizocrinus, 

 Bourguetwrinjjii?. 



