Crinoidea, Pentacrininae. 
39 
1 internodal from bed e 4 of Cutting VI on Veszprem-Jutas Railway, lettered r ; 
an internodal ( 5 ) a hypozygal (t), a hypozygal with one other internodal (u), and 
a hypozygal with two other internodals (v), all from Veszprem, Giricses Domb, 
lower stratified limestone. Specimen c (figs. 62—64) is taken as holotype. 
With the exception of q , all these specimen are of Cassian age. Specimen q 
is Raiblian, and, as will be seen, shows slight differences from the others, so 
that perhaps it does not really belong to this species. 
Description of Specimen s. — The Variation of the transverse section 
(figs. 62, 65 69) occurs between individual specimens, but also no doubt between 
regions of the same stem; the excavation is greatest at the epizygal as usual. 
The following measurements in millimetres are of ordinary internodals, except 
where otherwise stated, 
and are 
based 
on averages where possible. 
a 
b 
b 
c 
c 
d 
e 
/ 
g g 
hypoz. 
hypoz. 
epiz. 
epiz. 
hypoz. 
epiz, 
Diameter. 
. . 1-5 
T35 
1-6 
2-3 
2-5 
2*7 
27 
2-8 
Height . 
. . 075 
07 
0-9 
1'05 
0-9 
1-24 
0'9 
FO 
0*9 1.1 
Diam. 100, height = . 
. . 50 
52 
62 
46 
50 
33 
37 
32 
h 
i 
j 
j 
k 
P 
P 
P 
q 
hypoz. 
hypoz. 
epiz. 
Diameter. 
. . 2’9 
3*0 
3-0 
3-0 
3*1 
3*3 
Height . 
. . l'O 
1-2 
l’O 
0-9 
0-83 
1*2 
0-8 
1-3 
0*9 
Diam. 100, height = . 
. . 34 
40 
33 
28 
38 
27 
From this it appears that relative height tends to decrease as diameter increases, 
that epizygals tend to be higher änd wider than ordinary internodals, and hypozy- 
gals lower. 
Except for the nodals, Variation in the side-faces is confined to different 
specimens. The greatest divergence from approximate straightness occurs in p , where 
the side-faces of the ordinary internodals are markedly concave ; the diameter at 
the suture being 3'1 mm., that in the middle of the columnal is 2'9 mm. In the 
same specimen the side-faces of the hypozygal are slightly concave, those of the 
epizygal almost straight. 
On internodal suture-lines the crenellae are equally pronounced all round, but 
at the syzygies they are scarcely visible. 
There is slight Variation in the height of adjacent columnars, the most widely 
separated extremes observed in any single specimen being l'O mm. and 0'6 mm.; 
but the material is not enough to permit of any inference. 
The only complete intersyzygia are /, m (fig. 61), n, and p. These specimens 
probably belong to this species, but without seeing a normal joint-face, one cannot 
be absolutely certain. Some of them may be Isocrinus tyrolensis. They have 
respectively 5, 5, 4, and 4 internodals including the hypozygal. 
The eleven other specimens from Cserhät include three fragments with epizygals, 
and four with hypozygals, while the remaining four are single internodals. In two 
cases there must have been at least five internodals including the hypozygal. The 
evidence of these and of the other specimens, as given above, suggests that the 
number of internodals was 5 or 4, and that the stems broke readily on the normal 
