166 
Tri&ssic Echinoderms of Bakony. 
This is the specimen figured by Zittel (Handbuch, p. 486, Fig. 344, right- 
hand) as an interambulacral plate. From St. Cassian. 
Text-fig. 58. 
Greatest length 
Greatest width 
9-6 
15 2 
Registered 1877, X, 758. From St. Cassian. 
k) /rrrTx 
7*3 
10-6 
Text-fig. 59. 
Greatest length 
Greatest width 
From Pachvcardientuffe of Frombach, Seiser Alp. Note the bevelling of the 
NW., N., and NE. margins. 
(RAW) In the Geologische Reichsanstalt, Wien. 
e) Greatest length . 5'9 
) Greatest width . lO'O 
Thickness along line x—y .1*6 
Text-fig. 60. Thickness in median line.1*4 
Original of Laube (1865) pl. X, f. 2 /. 
(HMW) In the Hof-Museum, Wien. 
n) _ Greatest length.8'8 
fp0) Greatest width.10'6 
CC2/ Thickness along line x—y .1*3 
Text-fig. 61. Annulus.1*6 X 1 7 
Height from acetabulum to outer face 5'1. The same measurement in three 
other specimens of this form is 4'8, 4*1, and 3*9. 
From Stuores Mergel, St. Cassian. 
o) Greatest length. 7*3 
Greatest width. 7*8 
Thickness along line x—y .1*3 
(Wj Thickness across blade.1*5 
Thickness in median line.1*0 
Text-fig. 62. Annulus.2*0 X 1*8 
Height from acetabulum to outer face . 3*3 
Registered, 1865, L 247. St. Cassian. 
