45 
dispersed, in some species of echini, among the larger and more cha- 
racteristic spines, I do not know of the existence of any fossil species ; 
neither do I find any information respecting any fossils of the fourth 
class, Hadiolus coronatus, figured by Klein, Tab. xxxn. k. ; and by 
Scheuchzer, Physic. Sacr. Tab lvi. The figure, indeed, of this 
spine, gives rather the idea of its being a spine of the genus Sudes 
fortalitio) um, which has suffered injury, and has been repaired by 
the powers of the animal. 
The very curious spine, Plate IV. Fig. 12, from the neighbourhood 
Ol Verona, is referable, I conceive, to this class, or to Sudes viUarum 
comp/ ess a;. I am entirely ignorant of the echinus to which 
it belongs. 
he class Clavicula contains many spines, which are exceedingly 
interesting in their forms. The first species, termed Glandaria, from 
the supposed resemblance of these bodies to acorns, are divided into 
those which are smooth, and those which are granularly striated, 
iwo of the latter, of different sizes, are represented Plate IV. Fig. 9 
and 11 No echini, recent or fossil, have been found, to which these 
aige glandiform bodies are known to belong. 
Plate I\. Fig. 1, 18 , and 21, may be regarded as those varieties of 
this species, which formerly were considered, from their figure as 
pe n e olives, or Lapides Judaici. Their recent analogue is still 
:~V n< f ™ {t ’ until of late years, that it was known to what 
genus of fossil echini these bodies belonged. 
This, circumstance was first ascertained and made known in the 
h ghly interesting travels of M. De Luc, who discovered one of these 
clavated spines attached to a portion of the shell. Tom iv n 407 
Tab. xii. The ecliinite found by M. de Luc was calcareous but filled 
with and imbedded in flint. Another specimen, very nearly similar 
to the foregoing, is figured and described by Andrea, irt. Helvet. p. 
in S wit ? TT Z m * he m ° Untain nan *d Randerberg, 
Switzerland. A specimen of this kind, in flint, from Kent, is repre- 
