668 BULLETIN 82, UNITED STATES NATIONAL MUSEUM. 



MTZOSTOMUM FCRCATUM VON GRAFF. 



Occu7^reivce. — Free-living. 



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

 other comatulids. 



Locality. — Moluccas. 



MTZOSTOMUM BICAUDATUM VON GRAFF. 



OcGwrrence, — Free-living. 

 Host. — Comactinia meridionalis. 

 Locality. — West of the Tortugas, Florida. 



MTZOSTOMUM FILICAUDA VON GRAFF. 

 Fig. 1264, pi. 41. 



Occurrence. — Free-living. 

 Host. — Coceometra hagenii. 

 Locality. — Off Sand Key, Florida. 



MTZOSTOMUM FILIFERUM VON GRAFF. 



PI. 52, fig. 1343. 



Occurreiwe. — Free-living. 

 Host. — Heterometra crenuJata. 



Locality. — ChaUenger Station 186, Prince of Wales Channel, Torres Strait, 

 8 fathoms. 



MTZOSTOMUM CARINATUM VON GRAFF. 



Occurrence. — Free-living. 



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

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

 Comatula solans, Comanthus hennetti, and five endocyclic comatulids. 



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

 ritius, 15 fathoms; and the Moluccas. .miiJui -^ 



MTZOSTOMUM (XIRONATUM VON GRAFF. 



Occurrence. — Free-living. _ ; .i 



Host. — Uycrinus australis. <^<\\\'\^^ vi-<\ 



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

 long. 45° 31' E.), 1,375 fathoms. 



MTZOSTOaiUM VINCENTINUM REICIIENSFERGER. 



Occurrence. — Free-living. 

 Host. — Isocrinus decorus. 

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



