. t' I MONOGBAPH OF THE EXISTING CRINOIDS. 666 



MTZOSTOMUJr ELONGATUM VON GRAFF. 



Occurrence. — Free-living. 



Hosts. — A specimen was found lying loose in a jar with Ste-phanovietra spicata 

 and Lamprometra profectus, and another was taken from an unidentifiable species 

 recorded as Comatula (or Antedon) triqueta. 



Localities. — Near Bohol, Philippines; and Challenger Station 174, near Kan- 

 davu, Fiji, 210, 225, or 610 fathoms. 



Remarks. — There is- some mistake in regard to the Challenger station given. 

 The species recorded from it, Stephanometra spicata and Lampro7netra protectus, 

 are both littoral and could not have occurred at any of the depths given. 



MTZOSTOMUM VKRnuCOSUM VON GRAFF. 



Occurrence. — Free-living. 



Uost. — An undeterminable species recorded as Comatula (or Antedon) triqueta. 



Locality. — Near Bohol, Philippines. 



myzostOmtjm: dentatum von graff. 



Occurrence. — Free-living. 



Hosts. — Heteronietra crenuluta; another specimen was found lying loose in a 

 jar containing Comatula Solaris, Comanthus iennetti, and five endocyclic 

 comatulids. 



Localities. — Challenger Station 186, Prince of Wales Channel. Torres Strait, 

 8 fathoms ; and the Moluccas. 



MTZOSTOMUM FIMBRIATUM VON GRAFF. 



Occurrence. — Free-living. 

 Host. — Heliovietra glacialis. 



Locality. — Challenger Station 48. Le Have Bank (lat. 43° 04' N., long 64° 

 05' W),51 fathoms. 



MTZOSTOMUM EXCISUM VON GRAFF. 



Occurrence. — Free-living. 



Hosts. — Coccometra hagenii, and a species recorded as Antedon impinnata. 

 Localities. — Off Alligator Eeef. Florida, 96 fathoms; and North Bay, Mau- 

 ritius. 15 fathoms. 



"'■'.' ■ "'■'"'" ' ' ' MTZOSTOMUM IRREGULARE VON GRAFF. 



Occurrence. — Free-living. 



_, . . ,v , T ^, .,, 7. >ri-jii« hidJ io Myaoiirr- 



Hosts. — Comactinia echznoperta and ( . mendionalis. 



Localiti-es. — West of Tortugas ; '' U. S. Coast Survey, 100 fathoms " ; Blake 



Stations 45, northwest of the Tortugas, 101 fathoms; 203, off Martinique, 10 to 27 



fathoms ; and 249, off Grenada, 2C2 fathoms. 



MTZOSTOMITM CARIBBEANUM VON GRAFF. 



Occurrence. — Free-living. 

 Host. — Uncertain. 

 Locality. — Caribbean Sea. 



