MONOGRAPH OF THE EXISTING CKINOIDS. 



201 





U 



Fio. 129. A SPECIMEN OP NAUMACHOCRINUS HAWAHENSIS FROM KACAI, HAWAIIAN ISLANDS, SHOWINGT HE VAKUTION as THI 



TYPE OF TUB COLUMNAXS, AND THE RELATIONSHIP BETWEEN THE CALYX AND THE COLUMN; THE ARMS BEYOND THE FIRST 

 PRIMIBRACH, AND THE TERMINAL STEM PLATE, ARE LACKING; (a) THE DISTAL POBTION OF THE COLUMN; (6) THE PROXIMAL 

 PORTION OF THE COLUMN AND THE CALYI. 



79146 Bull. 8215 14 



