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APPENDIX. 
In the course of my observations on the Crinoidal remains, several have oc- 
curred to me which, although I as yet possess only fragments of them, I do 
not wish to pass over entirely without notice. 
1, The superior portion (fig. 6.) of a Crinoidal animal, probably belonging 
to the genus Cyathocrinites, from the Mountain limestone of the Mendip Hills. 
It is on account of its decomposed surface that I am unable to speak positively 
as to its generic character. What may be traced proves it considerably ana- 
logous to Cyathocrinites planus, but having fewer joints interposed between 
the cuneiform ones from which the fingers and continuations of the hand pro- 
ceed. Should it belong to that genus and prove a distinct species, I should 
feel inclined to name it CYATHOCRINITES ABBREVIATUS. 
2. The pelvis of a Platycrinites (fig. #. and 5.) formed only of two plates, 
presenting at their upper edge six excavations, and hence indicating the exist- 
ence of six scapule, from the Black Rock, near Bristol. I consider this as a 
monstrous variety of Platycrinites levis, analogous to those irregularities of 
nature which occasionally render the column of the Pentacrini tetragonal and 
hexagonal as noticed before, and which sometimes produce a six-fold division 
of the pelvis in Encrinus moniliformis, as noticed by Rosinvus, or a four-fold 
one of Apiocrinites rotundus, of which I have seen a specimen in the posses- 
sion of a friend. 
3. A column or auxiliary side arm (fig. 1. to 3.) of a Crinoidal animal, 
formed of barrel-shaped joints externally tuberculated, articulating by striated 
surfaces, and having in the centre a round nourishing vessel or alimentary ca- 
nal. From some place in Germany, and ona slab of Mountain limestone from 
the river Swale in Yorkshire, having alongside of it fragments of Actinocri- 
