MONOGRAPH OF THE EXISTING CRINOIDS. 



67 



INTERAMBULACRAL (INTERPALMAR) 

 AREAS . 



AMBULACRAL GROOVES 



tx- "/ s tiff^ f 



ANUS 

 ANAL TUBE 



FIG. 15. 



FIG. 16. 



AMBULACRAL GROOVES 



FIG. 17. 



INTERAMBULACRAL (INTERPALMAR) 

 AREAS 



PER1SOMIC PLATES 



AMBULACRAL GROOVES 



MOUTH 



ANAL TUBE' ANUS ANAL AREA 



FIG - 18 - ANAL AREA 



OUTM 



ANAL AREA 



F:o. 19. 



FIGS. 15-19. 15, THE NAKED ENTIRE DISK OF A SPECIMEN OF TROPIOMETRA PICTA FROM RlO !>E JANEIRO, ll'i, TlIE NAKED 

 INCISED DISK OF A SPECIMEN OF CENOMETRA BELLA FROM THE CHINA SEA. 17, THE DEEPLY INCISED DISK OF A M 

 OF MARIAMETRA DEUCATISSIMA FROM SOUTHWESTERN JAPAN. 18, THE PARTIALLY PLATED, SLIGHTLY INCISED DISK OF A 

 SPECIMEN OF PAKAMETRA ORION FROM SOUTHERN JAPAN. 19, THE COMPLETELY PLATED ENTIRE DISK OF A SPECIMEN OF 

 NEOMETRA MULTICOLOR FROM SOUTHERN JAPAN. 



