MONOGRAPH OF THE EXISTING CRINOIDS. 



371 



Fio. 503. 



FlO. 504. 



FIG. 505. 



FlO. 506. 



FIG. 507. 



FlO. 5HS. 



TIGS. 503-508. 503, DORSAL VIEW or THE RADIAL PENTAGON or A SPECIMEN OF PEROMETRA DIOMKDE.E PROM SOUTHERN JAPAN. 

 504, DORSAL VIEW OF THE RADIAL PENTAGON OF A SPECIMEN OF ERYTIIROMETRA RUBER FROM SOUTHERN JAPAN. 505, DORSAL 

 VIEW OF THE RADIAL PENTAGON OF A SPECIMEN OF PROMACIIOCRINl'S KERGUELENSIS FROM KtRGl'ELEN ISLAND (AFTER 

 P. II. CARPENTER). 506, DORSAL VIEW OF THE RADIAL PENTAGON OF A SPECIMEN OF SOLANOMETRA ANTARCTICA FROM THE 

 ANTARCTIC (AFTER P. II. CARPENTER). 507, DORSAL VIEW OF THE RADIAL PENTAGON or A SPECIMEN OF HELIOHETRA GLA- 

 CIAUS (AFTER P. H. CARPENTER). 508, DORSAL VIEW OF THE RADIAL PENTAGON OF A SPECIMEN OF FLOROMETRA ASPF.RRIMA 

 FROM ALASKA. 



