CRETACEOUS ECHINODERMATA. 348 
CRINOIDS. 
In the plates to this work, many very interesting and beautiful specimens of 
cretaceous Crinoidea are figured. The originals of these figures had not been 
submitted to my examination before the author’s death, and many of them are 
in private collections to which I have no access. I can therefore offer only a 
few notes which may serve as a clue in consulting the figures. 
Marsupites, Mantell. 
Three species of this curious genus are represented in Tab. XX. The 
figures 4, 5& 9 agree well with the Marsupites Milleri of Dr. Mantell. Fig. 10 
appears to be a variety of Marsupites ornatus, Miller ; and fig. 8, from a speci- 
men in the rich collection of Mr. Catt of Brighton, is probably new. If so, it 
might be appropriately named Marsupites levigatus, since it is distinguished 
from all its allies by having smooth plates, undulated however by strong radia- 
ting ribs. 
Apriocrinus, Miller. 
The figures in the lower portion of Tab. XX., from 11 to 39, possibly include 
representations of fragments of more than one cretaceous species of this genus, 
but probably for the most part belong to the Apiocrinus ellipticus of Miller. 
Pentacrinus, Miller. 
Several fragments of the stems of this genus are figured in Tab. XX., and 
appear to belong to several distinct species. Fig. | is from Washington, Sussex. 
Fig. 2 is from Bromley in Kent. Fig. 3 is a portion of a Kent Pentacrinite in 
Mr. Catt’s collection. Fig. 6 is from Houghton in Sussex. 
In Tab. XIX. fig. 2, is a representation of the finest specimen of a chalk Pen- 
tacrinus extant. It is in Mr. Catt’s collection, and a minute analysis of it would 
go far to clear up the obscurity at present affecting our knowledge of the cre- 
taceous Pentacrinites. A recent Pentacrinite, fig. 1, is figured in the same plate 
for comparison. Figs. 3 to 15 are portions of chalk Pentacrini. 
