THE 
VOYAGE OE H.M.S. 
CHALLENGER. 
ZOOLOGY. 
REPORT on the Myzostomida collected during the Voyage of H.M.S. 
Challenger during the years 1873-76. By Dr. L. von Graff, 
Professor of Zoology in the College of F orestry, Aschaffenburg, Bavaria. 
PREFACE. 
In this Report sixty-eight, species of Myzostomida are enumerated, of which fifty-two appear 
here for the first time. The Report includes, in addition to the specimens collected by the 
Challenger Expedition, all the new material which I have been able to gather together since 
the publication of my Monograph on the genus Myzostoma. 1 2 I am indebted to the editor 
of the Challenger publications, as well as to those who have kindly furnished me with collec- 
tions, for the permission, in the interests of science, to collect all the information into the 
present memoir. I am specially indebted to Mr. P. Herbert Carpenter, through whom 
I have received fifty new species. He, at my request, and with a readiness which cannot 
be too highly appreciated, looked for and sent me, with all the information necessary, 
the specimens of Myzostoma not only from the Challenger collection of Crinoidea, 
but also from the many others which he has examined during the past few years. The 
following shows the principal sources from which I have obtained the specimens de- 
scribed in the memoir, and I take this opportunity of conveying my thanks to the 
gentlemen who have so generously placed collections in my hands for examination and 
description. 
1. Challenger Expedition. 
2. Dredging Expedition of the U.S.S. “ Corvin,” “ Bibb,” “ Hassler,” and “ Blake ” 
(Mus. of Comp. Zool., Harvard College, Cambridge, Mass., Prof. A. Agassiz). 
1 Das genus Myzostoma, mit 11 Tafeln., Leipsic, 1877. 
(zool. chall. exp. — part xxvii — 1884.) 
Del 1 
