668 BULLETIN 82, UNITED STATES NATIONAL MUSEUM. 



MYZO8TOMUM FUEOATUM VON GRAFF. 



Occurrence. Free-living. 



Host. Found lying loose in a jar containing a black comasterid and several 

 other comatulids. 



Locality. Moluccas. 



MYZOSTOMUM BICAUDATUM VON GRAFF. 



Occurrence. Free-living. 

 Host. Comactinia meridionalis. 

 Locality. West of the Tortugas, Florida. 



MYZOSTOMUM FILICAUDA VON GRAFF. 

 Fig. 1264, pi. 41. 



Occurrence. Free-living. 

 Host. Coccometra hagenii. 

 Locality. Off Sand Key, Florida. 



MYZOSTOMUM FILJFEKUM VON GRAFF. 



PI. 52, fig. 1343. 



Occurrence. Free-living. 

 Host. Heterometra crenulata. 



Locality. Challenger Station 186, Prince of Wales Channel, Torres Strait, 

 8 fathoms. 



MYZOSTOMUM CARINATUM VON GRAFF. 



Occurrence. Free-living. 



Hosts. N eocomatella alata; another specimen was found on a comatulid re- 

 corded as Antedon impinnata; and a third was found loose in a jar containing 

 CoTnatula Solaris, Comanthus bennetti, and five endocyclic comatulids. 



Localities. Blake Station 193, off Martinique, 169 fathoms; North Bay, Mau- 

 ritius, 15 fathoms; and the Moluccas. 



MYZOSTOMUM CORONATUM VON GRAFF. 



Occun'ence. Free-living. 

 Host. Ilycrinus australis. 



Locality. Challenger Station 146, west of the Crozet Islands (lat. 46 46' S., 

 long. 45 31' E.), l,37f> fathoms. 



MYZOSTOMUM VINCENTINUM REICIIENSPERGER. 



Occurrence. Free-living. 

 Host. Isocrinus decorus. 

 Locality. Blake Station 269, off St. Vincent, 124 fathoms. 



