MONOGRAPH OF THE EXISTING CRINOIDS. 721 



with purplish brown; cirri purplish brown, with the distal half yellow; disk 

 purplish brown, marbled with yellow in the interambulacral areas. 



Calometra discoidea. Bright yellow, the cirri lighter. 



Calometra callista. White, a broad band of deep purple in the basal third of 

 the arms and two or three narrower bands distally. 



Calometra separata. Bright yellow, banded with purple; lower brachials 

 purple ; cirri deep purple, or purple banded with white. 



Family THALASSOMETRID^. 

 Subfamily PTILOMETRIN^E. 



PtUometra macronema. Purple, the cirri red. 

 Pterometra magnipeda. Brownish yellow. 



Pterometra pulch-errima. (a) Bright red, more orange dorsally, with scat- 

 tered small white spots on the pinnules and cirri. 

 (b) Yellow brown. 



Pterometra venusta. Dark red, the tips of the pinnules white. 

 Asterometra macropoda. Light brownish yellow, the cirri white. 

 Asterometra anthus. Dull brownish yellow, the cirri almost white. 



Subfamily THALASSOMETRIN^;. 



Crotalometra porrecta. Yellow. 



Crotalometra flava. Bright yellow. 



Oceanometra gigantea. Arms light chocolate, cirri light chrome yellow. 



Cosmiometra philippinensis. Bright yellow. 



C osmiometra aster. Bright yellow. 



Stenometra diadema. Bright yellow. 



Daidalometra arachnoides. Chrome yellow. 



Daidalometra hana. Bright yellow, sometimes banded with white ; cirri white 

 with a few narrow bands of yellow. 



Parametra orion. (a) Bright yellow, usually banded rather narrowly with 

 white; cirri dull greenish basally, light yellow distally, the colors separated by a 

 darker band. 



(b) Some specimens, more often the larger ones, are grayish, the distal por- 

 tion of the arms bright yellow. 



Parametra fisheri. Arms cadmium orange, darkest on the pinnules; cirri 

 bright lemon yellow. 



Lissometra albofava. Light yellow banded with white; cirri white. 



Aglaomctra propinqua. Yellow. 



Aglaometra eupedata. Bright yellow, the cirri lighter. 



Thalassometra villosa. Light yellow. 



Thalassometra lusitanica. Bright yellow to brownish yellow. 



Thalassometra omissa. Bright yellow. 



