MONOGRAPH OF THE EXISTING CRINOIDS. 



149 



Fio. 90. 



FlQ. 91. 



Fios. 90,91. 90, LATERAL VIET OF A YOUNG SPECIMEN or PTILOMETRA MULLERI FROM NEW SOOTH WALES, SHOWING CIBEI or 

 THE SHORT, STOUT, AND SMOOTH CHARITOMETRID TYPE. 91, LATERAL VIEW OF A YOUNG SPECIMEN OF 1'TILOMETRA Mfl.LKIU 

 FROM NEW SOUTH WALES, SHOWING CIRRI OF THE SHORT, STOUT, AND SMOOTH CHARITOMETRID TYPE, BUT WITH THE TERMINAL 

 PORTION BEGINNING TO TRANSFORM INTO THE THALASSOMETRID TYPE. 



