732 BULLETIN 82, UNITED STATES NATIONAL MUSEUM. 



Violet occurs in combination in the following species: 



Comatella steUigera. Heterometra savignii. 



Zygometra microdiscus, young. Amphimetra discoidea. 



Zygometra pristina. Lamprometra protectus. 



Heterometra nematodon. f Lamprometra palmata. 



Heterometra affinis. Cenometra delicata. 



Heterometra crenulata. Cyllometra albppurpurea. 



Prometra chadwicki. 



Green occurs in combination in the following species : 

 Comatella steUigera. Comanthus parvicirra. 



CapUlaster clarki. Lamprometra protectus. 



Comissia peregrina. Dorometra mauritiana. 



Comixxia lutkeni. Dorometra nana. 



Comantheria briareus. Hathrometra tenella. 



Orange occurs in combination in the following species : 

 Stephanometra spicata. Antedon mediterranea. 



Pectinometra flavopurpurea. Antedon adriatica. 



Pterometra pulcherrima. Ileliometra glacialis. 



Antedon biftda. Hathrometra prolixa. 



Gray occurs in combination in the following species : 



Homalometra denticulata. Pectinometra fta-vopurpurea. 



Oligometrides adeonce. Parametra orion. 



Neometra multicolor. Antedon mediterranea. 



Black occurs in combination in the following species : 

 Comaster parvus. Lamprometra protectus. 



Comantheria briareua. Lamprometra palmata. 



Cyllometra albopurpurea. 



In the following species but one color occurs, which, however, is variegated 

 with lighter and darker shades: 



Orange : Stephanometra spicata. 



Red: Antedon bifida, Antedon mediterranea, Antedon adriatica. 



Brown : Dorometra briseis, Hathrometra sarsii. 



In the following species two colors occur : 

 Yellow and purple : 



Comanthus solaater. Oligometrides adeonce. 



Zygometra punctata. Calometra separata. 



Dichrometra doderlcini. Tropiometra picta. 



Lamprometra palmata. Eumetra chamberlaini. 



Cyllometra albopurpurea. Ileliometra glacialis. 

 Yellow and red : 



Comatella. nigra. fCatoptometra ophiura. 



Comant.'hus annulfita. Catoptometra rubroflava. 



Catoptometra magnifica. Tropiometra picta. 



Erythrometra ruber. 



