Lower Palaeozoic Crinoids of Bohemia. 113 



fully recognize, their own interpretation of the fragment does 

 not agree with Angelin's diagnosis of his genus. Their 

 interpretation is that the fragment represents the lower portion 

 of a cup, consisting of 3 basals, 5 radials, each followed by 

 about two thirds of a broken primibrach, and 5 large inter- 

 radials, all but one reaching from the basals to the same level 



Fig. 0. — The so-called Calpiocrinus ? ? ? bohemicus, after Waagen and 

 Jahn, pi. lix. figs. 7,8,9; X i diam. a, u calice incomplet, vu 

 d'eri bas," but from above if regarded as a root, b, from the 

 side, in what W. & J. consider the normal position, but upside 

 down if it be a root, c, "vu d'en haut," but showing the 

 surface of attachment to the sea-floor if a root. 



as the broken top of the first primibrachs. It is admitted 

 that all the plates are extremely irregular. This point, 

 however, need not be laboured, for a glance at Mr. Swoboda's 

 drawing of the alleged upper surface (pi. lix. fig. 9 ; our 

 Fig. 6 c) is enough to suggest — nay, to force upon one — a very 

 different interpretation. The published figures having failed 

 us so constantly, it may seem the height of rashness to take 

 their evidence in opposition to the opinion of two eminent 

 naturalists who have devoted so many years to the study of 

 these fossils. But no human being could have drawn that 

 figure 9 without having either before him or in his mind's 

 eye the root of some stalked Echinoderm. Here is faithfully 

 represented the flat surface of adhesion to the sea-floor, with 

 grooves, like those of Liehenocrinus and other genera, 

 radiating from the central cavity. Within that cavity are 

 shown what the authors themselves describe as " eeailles 

 nombreuses, imbriquees, orne'es de cotes fines longitudinales, 

 et traversers par un grand nombre de petits canaux radial res." 

 This is no description of the thecal cavity of any fossil 

 crinoid, but is perfectly intelligible in the light of certain roots 

 well known to geologists in North America. As for an 

 appearance of pentamerous symmetry in the outer plating, 

 Anr>.& Mag. N.Eist. Ser. 7. Vol. vi. 8 



