22 Triassic Echinoderms of Bakony. 
crinus Wagneri. They vary in section from circular to quinquelobate, and some 
joint-faces show traces of the appropriate pattern as described above. Others come 
nearer to the Entrochus quinqueradiatus just described. The supposed fragments of 
cirri are thin, straight, and apparently cylindrical. No cirrus-facets can be detected on 
any of the columnals, but the surfaces are so weathered that such facets may have 
occurred but have been obl'terated. The brachials are simple, approximately semi- 
circular in section with a wide V-shaped ventral groove; they are rather longer 
than wide. 
Relations of the Specimen. — It is an assumption that all these parts 
belonged to the same species; but it would perhaps be a greater assumption to 
suppose that they belonged to more than one species. A cirriferous stem containing 
ossicles of this nature is characteristic of Holocrinus Wagneri, and neither cirrals 
nor brachials present any features inconsistent with their reference to that species. 
At the same time the evidence that they did belong to it is far from conclusive. 
Entrochus cf. «Pentacrinus venustus». 
(Plate I, fig. 35.) 
1843, Pentacrinus venustus >? Kutrsrein: Geol. Ostlich. Alpen. p. 277, pl. XVIII, f. 24 a—c. 
Material. — Two stem-fragments (7, k) and eight ossicles, possibly cirrals 
(a—h), from the Cassian beds of Cserhat (Leitnerhof), appear to belong to one of 
those puzzling transition forms between the Encrinus stage of development and the 
Pentacrinine stage. 
Description of the Specimens. — Specimen 7 is a single columnal, 
with diameter 1°8 mm., height 0°9 mm., sides very slightly convex, section slightly 
subpentagonal. The joint-face shows a minute lumen, surrounded by a slightly 
granular central area, the granules merging into fine ridges. The ridges are divided 
into 5 groups, of about 6 in each, the median ridge or ridges in each group being 
the longest and coinciding with a radius of the circle, the others being parallel to it, 
and the outer ridges of each group meeting those of the adjacent group. Each group 
corresponds to a side of the subpentagon. 
Specimen & consists of two columnals united by an obscure suture, probably 
representing a syzygy. Height of the pair 1°5 mm., giving as average height of a 
columnal 0°75 mm., diameter at the syzygy 1°6 mm. The joint-faces are as de- 
scribed in the other specimen. The side-faces of the pair are slightly convex, the 
greatest width being at the syzygy. At the level of the syzygy are 5 markings, each 
corresponding with the middle longer ridge of each group. One of these markings, 
which is the largest and the most raised on a swelling above the general level, 
shows a shallow circular depression, with a minute central lumen and a raised, 
faintly crenelate margin. Another, adjacent to it, is smaller, a little less raised, and 
not so clear in its details. A third, adjacent to the last, is still slightly raised, but 
is smaller and quite obscure. The two others are little more than obscure scars 
which, were it not for their definite radial position, might pass unobserved. Clearly 
all these markings are in the nature of facets for cirri, perhaps all functional at one 
time in the growth of the stem; but only the two larger can be said, without doubt, 
to have borne cirri at this stage. The cirrals, it may be inferred, were circular in 
