MONOGRAPH OF THE EXISTING CRINOIDS. 



317 



FIG. 407. 



Fio. 411. 



FIG. 412. 



Fia. 413. 



FIGS. 407-413. 107, A VERY YOUNG PENTACRINOID LARVA OP HATHROMETRA SARSII FROM NORWAY, SHOWING THE LONG 



BOURGUETICR1NOID COLUMNALS, THE SCALLOPED TERMINAL STEM PLATE AND, IN THE CROWN, THE NASALS AND ORALS (AFTI'.R 

 M. SARS). 408, A YOUNG PENTACRINOID LARVA OF COHACTIN1A J1ERIDIONAUS FROM YUCATAN, SHOWING THE LARGE 

 BASALS, THE ORALS, AND THE BEGINNINGS OF THE RADIALS. 409, A YOUNG PENTACRINOID LARVA OF HATHROMETRA 

 PROLIXA FROM EAST GREENLAND. SHOWING THE 11ASALS AND THE ORALS, AND THE BEGINNINGS OK THE RADIALS. 41(1, A 

 YOUNG PENTACRINOID LARVA OF COMPSOMETRA LOVENI FROM PORT JACKSON, NEW SOUTH \V.\I.ES. 411, A YOUNG PENTA- 

 CRINOID LARVA OF COMACTINIA MERIDICJNALIS. 412, LATERAL VIEW OF THE CROWN AND PROXIMAL COLUMNALS OF A YOUNG 

 PENTACRINOID LARVA OF CnMACTINIA MERIDIONAL!!) FROM YUCATAN, SHOWING THREE INTERRADIALS INSTEAD OF Till KOB] 

 USUAL ONE. 413, LATERAL VIEW OF A YOUNG PENTACRINOID LARVA OF HATUROMETRA SARSII FROM NORWAY, WITH THE 



IliRl JUST FORMING (AFTER M. SARS). 



