MONOGRAPH OF THE EXISTING CRINOIDS. 



137 



nule always agrees with the pinnule on the IBr 2 in character, just as the pinnules 

 on the second element in division series of 4(3-f-4) always agree with the first 



203 



Kio. 203. LATERAL VIEW OF SPECIMEN OF PTEEOMETBA TBICHOPODA FROM " ALBATBOSS " STATION 5179. 



pinnules of the free undivided arms. The following pinnule, however, just above 

 the pinnule on the IBr 2 , is always very different, and its characters are repeated 



