20 Triassic Echinoderms of Bakony. 
which fit into 5 grooves (shown in a, e, g) on the apposed surface. The sides of 
these grooves are, it is supposed, then raised, and thus is produced a joint-face 
with ten minor ridges (shown inc, d, f), apposed to a surface with 5 major ridges 
bordered by grooves (shown in d). The elevation of the surface between the last- 
mentioned grooves might result in the development of 5 intercalated ridges; but it 
is not easy to say certainly whether there are signs of this. The ridges are raised’ 
above the central area and sink to the general level of the surface just before 
reaching the periphery, which occasionally shows traces of a slightly raised bounding 
rim (shown in g and k). Thus there is no sign of crenelation at the sutures. 
The following table gives the details. In it R and G stand for major ridges 
or grooves respectively, while r stands for minor ridges: where possible, a statement 
is made concerning each joint-face, and it will be seen that major ridges on the 
one surface often correspond to either simple major grooves or to minor ridges 
bounding major grooves on the other surface of the same columnal. 
a Ipadulin <6 bela Devos ti Soi eae 
Diameter. . .| 1:2 he 1°3 1°4 16 I-75 2°3 3°65 
Height . . .| 1:0 1°2 06 15 15. 20 20 1°8 
_ of Rid CaN ee sd : 
eee 5R|5G| ?5R |5R [lor ?DR|10r| 2 |5G| ? |10r or [5G 5R | ? 
f ximat 2 “ 
eta ibs 0°25 2 | 074 | 05] O04 ? 05 06 re 
oD 
Curvature ponvex. | almost |2parkedly | convex | strong’y | almost | almost | convex 
of sides .. ay eins straight. '/, diam. |, diam. | ?/, diam. straight | straight is ee 
Relations of the species. — The general appearance reminds one of 
the columnar represented in QuenstepT’s «Petrefactenkunde Deutschlands», pl. CVII, 
fig. 42, from the Wellenkalk of Deubach, and assigned by him to Enerinus lilii- 
formis, Possibly that specimen, though a trifle large, belongs to the Wellenkalk form, 
Holocrinus Waguert. Both it and our specimens resemble some of the figures of 
joint-faces given by R. Wacner in his account of that species, under the name Encri- 
nus gracilis (Jena. Zeitschr. XX, pl. I, figs. 5a, 6b, and pl. Il, fig. 6c). Those spe- 
cimens are, however, clearly pentagonal, and the grooves are regarded as smooth 
petaloid areas directed towards the angles of the column (i. e. interradial in position), 
and surrounded by crenellae, which may, it is true, be very faint. Our specimens, on 
the other hand, are quite or almost circular, and show no trace of crenellae. It is just 
possible that the depressions in the largest of our specimens (h) are smooth petaloid 
areas; but the isolation and prominence of the ridges militate against this view. 
