196 
about seven in number ; and although their continuity appears to have 
been broken, their number may be pretty correctly ascertained at the 
other end, where they are seen contracted together, and having their 
terminations adorned with fimbriae of a plumose appearance. Although 
by no means assured of the real nature of this fossil, I have thought it 
right to place a sketch of it before you, since the observations of others 
may correct the opinion I entertain respecting it. It may not, however, 
be amiss to remark that I have seen forms on the polished surface of the 
Derbyshire marbles, which, I think, bear an exact resemblance to that of 
the substance which is here figured. 
The pear-like shape of this encrinite would seem to direct the best 
term by which this species might be distinguished ; but an encrinite 
to be hereafter described offers an equal claim to be denominated the 
pyriform encrinite. Besides which consideration, there is another of 
some weight. The pelvis of the encrinite now under examination has 
much of the form of a cap, whilst that of the encrinite which we shall 
next examine is so much more elegantly formed as rather to resem- 
ble a turban. To distinguish these two, it therefoi’e seems well to term 
theformerthe Cap Encrinite, andthelatter the Turban Encrinite; 
whilst that, the pelvis of which is pyriform, appears best to deserve the 
denomination of the Pear Encrinite. 
In several parts of Yorkshire and Lancashire marble formed of en- 
crinal remains are found in very considerable quantities ; but whether 
this encrinite is the same with the cap encrinite of Derbyshire, I am 
incompetent to determine, the Yorkshire encrinite being only known 
to me by its vertebrae. With the hope of obtaining some information 
respecting the animal whose remains were thus preserved, and especially 
for the sake of ascertaining whether it was of the same species with 
that whose remains are detected in the Derbyshire marble, I requested 
my worthy and intelligent neighbour, Mr. William Inman, to collect 
for me some illustrative specimens, as well as to make such observa- 
tions on the quarries, &c. as he should be able, whilst visiting that 
