MONOGRAPH OF THE EXISTING CBINOIDS. 



365 



Fig. 483. 



Fir,. 4S-1. 



Fig. 485. 



FiQ. 4S6. 



Fig. 4S7 



Fig. 4SS. 



Fig. 4S9. 



Pigs. 483-489. — 183, Dorsal view of the r.\dul penhgon of a specimen of Pth-ometra mClleri from Austraua (after 

 P. H. Carpenter). 484, Dorsal ^^E\v of the radul pentagon of a specimen of Stylometra spunrERA from Ciiia. 

 485, Dorsal vhew of the radial pentagon of a speqmen of Stenometra quinquecostata from the Ki Islands (after 

 P. H. Carpenter). 486, Dorsal view of the radial pentagon of a specimen of Stiremetra dreviradla from the 

 Kermadec Islands (after P. H. Carpenter). 4S7, Dorsal view of the r.\dul pentagon of a young specimen of 

 Stiremetra bre\iradia from the Kermadec Islands (after P. 11. Carpenter). 4?8, Dorsal aiew of the radial 



pentagon of a specimen of THALASSOMETRA VILLOSt FROM THE WESTERN .VLEUTIAN ISLANDS. 4S!>, DORSAL VIEV OF THE 

 RADLAL PENTAGON OF A SPECIMEN OF PARAUETRA ORION FROM SOUTHERN JAPAN. 



