A6 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. . . . . . O8 10 DUS 92 Ce Sedo iced Gomes 
Height of internodal . . 056 O08 O75 O06 0°75 O7 0:86 0:72 0:76 08 
Height of epizygal. . . —=— — UO =] U8 OF OFF OD) OF = 
Diameter 100, height. 70 80 65 50 57 46 57 45 47 48 
Diameter.) ¢eostotedtZo WS ytd By AO sk OaG ey 29-9) 128 ae 
Height of internodal . . O08 064 0°73 0° 087 076 O08 O83 1:0 
Height of epizygalay “ni MOOROSKy aC: ial 
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 row 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 . . . . 16 15 
Diameter of nodal? 5 <3 =. is 7, 
Height of internodal. . . . . O72 0°86 
elshiOtenodalag 5 at ae ena) 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 7R, 1°2; length of rv, 1; from centre 
to end of petal-floor, 0°9; length of shortest crenella, 0°2; length of longest crenella, 
04; width.!of crenella, 0°075. 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. 
