46 
Triassic Echinoderms of Bakony. 
The 10 normal specimens figured (figs. 90—100) are all from bed e 4 of Cutting 
VI, and the original of fig. 94 is taken as holotype. 
All are of Cassian age. 
Description of Specimens. — The following measurements in milli- 
metres are based on averages of the columnals: 
Diameter. 
08 
1-0 
1-15 
1-2 
1-3 
D5 
1-5 
1-6 
1-6 
1-65 
Height of internodal . . 
0-56 
08 
075 
06 
075 
07 
•CD 
00 
Ö 
072 
076 
00 
ö 
Height of epizygal . . . 
— 
— 
075 
— . 
0-8 
09 
0-95 
0-9 
0-9 
— 
Diameter 100, height — . 
70 
80 
65 
50 
57 
46 
57 
45 
47 
48 
Diameter. 
1-7 
1-8 
D8 
1-9 
1-9 
2-1 
2*2 
2-3 
2-8 
Height of internodal . . 
08 
CD 
Ö 
073 
08 
0-87 
076 
08 
0*83 
DO 
Height of epizygal. 
09 
0‘9 
— 
09 
1-1 
— 
— 
— 
— 
Diam. 100, height = . . 
41 
30 
40 
42 
45 
36 
36 
36 
35 
The sculpture of the side-face (figs. 94, 95) is neat and very characteristic. 
The fine sutural ridge often bends in and out with the crenellae, and so tends 
to produce a double rovv of beads. The most pronounced feature, however, is the 
raising of the interradial angles of the epizygal as narrow rounded ridges, which 
project in a bow-like curve well beyond the general level of the column; between 
them is the broad, deep, and sharply marked radial excavation, in which is set 
the distinct and slightly raised cirrus-facet (cf. figs. 97, 98). An intersyzygium, held 
with the epizygal uppermost, reminds one of a jewelled staff surmounted by a regal 
crown. Thus the trivial name sceptrum conveys not merely this idea, but also the 
idea of superiority over the truncheon — scipio. 
The extent of the nodal swelling appears from these measurements in milli- 
metres: 
Diameter of internodal . . 
. . D6 
1-5 
Diameter of nodal.... 
. . D8 
17 
Height of internodal . . . 
. . 072 
0-86 
Height of nodal .... 
. . 09 
0-95 
The increased radial excavation also affects the hypozygals, but to a far less 
extent, while they show no trace of the interradial ridges. 
Out of 13 fragments taken at random, 3 have 5 internodals, 6 have 6,3 have 
7, and one has 8. The fragments are broken at every syzygy, but many are broken 
elsewhere; there are many without either epizygal or hypozygal. 
Joint-faces. — Normal (figs. 91—93): the longest crenellae are the adradial peri- 
pheral, which, in large specimens, may become perradial. The crenellae scarcely 
widen towards their outer ends. The following measurements in millimetres are from 
a normal internodal: diameter, 2'3; length of IR, T2 ; length of r, 1 ; from centre 
to end of petal-floor, 09; length of shortest crenella, 0'2; length of longest crenella, 
04 ; widthjof crenella, 0075. Syzygial (figs. 97—100): the increased number of 
peripheral crenellae at the syzygy is due to the greater radial excavation; the whole 
syzygial suture-line is crenelate. 
