726 BULLETIN 82, UNITED STATES NATIONAL MUSEUM. 



(Florometrd) and in CaZamocrinus, the yellow in the latter passing to a greenish 

 tinge, in the comatulids to a reddish tinge, or even to brilliant red as the principal 

 tint. 



Professor Chun records the discovery of a sulphur yellow Pentametrocrinus off 

 the coast of Somaliland, in 1,289 meters. 



For purposes of comparison the coloration in life of the stalked crinoids is 

 given ; but these are not considered in the discussion following. 



Family HOLOPODID^. 

 IIolopus rangii. Whitish. 



Family PENTACRINITIDJE. 



Metacrinus acutus. Grayish green. 



Metacrinus angulatus. Light yellow or light reddish orange, the column al- 

 most white. 



Metacrinus cingulatus. Light yellow or light reddish orange, the column al- 

 most white. 



Metacrinus costatus. Uniform dusky purple. 



Metacrinus moseleyi. Uniform dusky purple. 



Metacrinus nobilis. (a) Light yellow or light reddish orange, the column al- 

 most white. 



(b) Deep sea green, the pinnules slightly lighter, the cirri still lighter and 

 more grayish. 



(c) Young examples are nearly white. 

 Metacrinus nobilis sumatranus. Brownish white. 

 Metacrinus nodosus. Uniform dusky purple. 



Metacrinus rotundus. Sea green, the crown usually brown, often with nearly 

 white bands across the arms. 



Metacrinus varians. Uniform dusky purple. 



Metacrinus wyvillii. Uniform dusky purple. 



Isocrinus decorus. (a) Purple. 



(I) Yellow. 



(c) White. 



Endoxocrinus wyvilletkomsoni. (a) Dark green. 



(6) Grass green. 



Endoxocrinus alternicirrus. Slightly brownish white. 



C omastrocrinus asper. Olive green. 



Ilypalocrinus lutresianm. (a) Dark olive green. 



(ft) Pink. 



Isocrinus decorus and Endoxocrinus parm-. Regarding these two species as 

 brought up together by the dredge and tangles, Sigsbee wrote that some were white, 

 some purple, some yellow ; the latter was the color of the smaller and more delicate 

 ones. From color notes taken shortly after the animals were placed in alcohol, 



