144 
Triassic Echinoderms of Bakony. 
equal length the height of the collerette above the annulus is 2°38 mm. in /f, and 
from 1:5 to 1°9 mm. in h. 
In a strongly striated shaft (7) about the size of h, the number of striae to 
1:0 mm. is8on the adapical face and about 6 at the distal end of the adoral face. 
2. Radioli spatuliformes. 
(Pl. X, figs. 262— 264.) 
From among the 57 specimens of this form found at Jeruzsalemhegy, 19, 
lettered a- s, are selected for measurement and outline drawings. 
All these draw- 
ings represent the outer or adapical face. 
Text-fig. 13. 
a b c d € 
Length i 17°0 = 16°1 tai 
Greatest width . a= 13-0 — 133 13°2 
Distance of greatest width 
from distal end oo lati — Co 5'4 
Thickness at same level* — re — 18 1:5 82:0 
Greatest thickness . 2°4 20 2°6 2°4 2°4 
Distance of same from 
distal end . . 12°6 — 11°9 tan 
Least width at collerette 2°3 29 34 2°6 Pie 
Thickness at same place 1°7 19 272 iG 16 
Width at annulus . 2°6 ol 38 29 2 
Thickness at annulus. 2°70 2°3 2°6 Pail 1's 
Distance of }( onouterface 1°1 14 16 14 12 
annulus from 
peetatlian oninnerface 1°9 Wee) 2:0 1:9 16 
Distance from onouter face 2°4 ila 1:0 ? 
annulus torim : 
oninnerface 15 - F ? 1°9 Or6 
of collerette 
* When two measurements are given, the first is the thickness in the median line, the second 
is the thickness over all. 
