44 
which I shall demonstrate when speaking of the genus Pentacrinites. A fine 
specimen in my possession, showing the double serrated edge of the tentacula, 
proves this assertion, since it exhibits a similarly formed margin to that which 
marks the adhesion of the plated integument in Pentacriuus Caput Medusa. 
Mr. Parxiyson calculates the number of joints forming the superior por- 
tion of this animal at 26,680, which would increase most surprisingly, were we 
to take into account the minute caleareous plates, that are interwoven in the in- 
tegument covering the abdominal cavity and inner surfaces of the fingers and 
tentacula, and add them to the former. 
As an instance how often a superficial examination may lead men of ability 
into error, Mrinrcxen in Qatuzfoascher Stueck, 8. p. 245. advances that the 
tentacula so regularly arranged in the interior of the lily encrinite, have some 
affinity to the septa in the orthoceratite, yet that these are formed of many 
pieces! 
The peculiarly fine lily encrinite figured by Knorr, tab. 11. a. was, it is 
said, purchased (jQaturforseher Stueck 3.) from the labourers at the limestone 
quarry at Schrapland, near Halle, by Inspector WiLkens, for 32 groschin, and 
given to Professor Lance, who sold it to Baron Nreeart. However in the 
same publication (Stueck 6.) it is stated that it was not bought by Wiikens, but 
by Mr. Virico, at Farrenstadt, near Querfurt, fortwo dollars, and given to 
Lance, who sold it for three louis d’or. If my memory does not misgive me, 
1 think I saw the specimen about twenty years ago in the collection of the 
saaturforshenden Geselschaft, at Dantzic. Where is it now? 
