114 



APPENDIX. 



XN 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 >rish 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 Elatycrinites (fig. 4. and 5.) formed only of two plates, 

 presenting at their upper edge six excavations, and hence indicating the exist- 

 ence of six scapula;, from the Black Rock, near Bristol. I consider this as a 

 monstrous variety of Platycrinites laevis, 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 ROSINUS, 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 on a slab of Mountain limestone from 

 the river Swale in Yorkshire, having alongside of it fragments of Actinocri- 



