20 
THE VOYAGE OE H.M.S. CHALLENGER. 
Species of Myzostoma. 
Living. 
Free. 
Host. 
Actinometra meridionalis, var. 
quadrata, P. H. C. 
„ morsei, P. H. C. 
„ mutabilis, Liitken, 
MS. 
,, nigra , Semp., MS. 
„ parvicirra, Miill., sp. 
„ pulchella, Pourt., sp. 
„ Solaris, Lam., sp. 
„ strata, P. H. C. 
Comatula, sp. ? 
Pentacrinus alter nicirr us, P. H. C. 
Batliycrinus aldrichianus,W y v.Th . 
Metacrinus costatus, P. H. C. 
„ angulatus, P. H. C. 
Ilyocrinus, sp.? 
M. areolatum, n. sp. 
M. nigrescens, n. sp. 
I M. echinus, n. sp. 
( M. brevicirrum, n. sp. 
M. brachiatum, Graff. 
’ M. costatum, F. S. L. 
M. pallidum, Graff. 
M. triste, Graff. 
_ M. elegans, Graff. 
’ M. abundans, n. sp. 
- M. carinatum, n. sp. 
M. inflator, n. sp. 
M. pallidum, Graff. 
M. horologium, n. sp. 
M. mcebianum, n. sp. 
’ M. calycotyle, n. sp. 
M. asymmetricum, n. sp. 
M. pentacrini, n. sp. 
M. deformator, n. sp, 
M. compressum, n. sp. 
j M. coronatum, n. sp. 
M. wyville-thomsoni, n. sp. 
M. ivyville-thomsoni, n. sp. 
Stelechopus hyocrini, n. g., n. sp. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
In independent sessile cysts. 
Free. 
Do. 
Do. 
Do. 
Sticking fast to and enlarging the 
pinnules. 
In swellings on the arms. 
Inside the pinnules, which be- 
come swollen and ovoid. 
Free. 
Do. 
Do. 
Do. 
Do. 
