32 Triassic Echinoderms of Bakony. 
straight outwards, slightly elliptical, surrounded by a slight rim; fulcral ridge about 
median, rather broad, narrowing towards lumen, which it surrounds. Cirral 1 scarcely 
projects, is more circular than the facet, and reaches nearer the syzygy; its outer 
face is directed downwards, and has a short, broad, fulcral ridge. 
Further notes on holotype and paratypes. — Measurements in 
millimetres : 
Holotype Paratypes 
Diameter 202s) 2 ee ee Senet OO ema 
Length Ofer: ‘se OR ee EE Reem tee creme erate i Oa hae nae 2 
Average height of inten ocdals eee mr saree LC nn Os omen OR OM/ammmn OG 
Heisht-of nodalt 7 205 ia Re ee te eet) 7s Os 7 OO Es 
The statement concerning the side-faces applies to all specimens except one, 
in which they are concave all the way round. There is no such longitudinal ridge 
along the interradial angles as one would suppose from Lause’s figures 20 a and c. 
There is no great variation in the heights of the columnals of individual 
specimens, and this proves that the specimens are not from the proximal, less 
developed region of the stem. 
Nodals occur on all the fragments except one, which comprises only 3 colum- 
nals, and of these one appears to be a hypozygal. In all the specimens one end is 
fractured at a syzygy, and in three of them both ends are. The number of inter- 
nodals is 5 in the holotype, and 5, 5, 6+?, and 7-++? in the other specimens. 
The inference from all these facts is that short internodes are characteristic of the 
species. 
No normal joint-face is exposed, but the statements made in the diagnosis 
are inferred from the syzygial faces and the suture-lines. 
The measurements of the cirrus-facet in the holotype are: tranverse diameter 
0°S5 mm., vertical diameter 0°45 mm. In one specimen the joint-face of the epizygal 
is deeply incised for cirri, and the indentation for the facet approaches the shape 
of a three-sided pyramid (compare the description of Jsocrinus tyrolensis major). 
We now proceed to discuss the remains of /socrinus from the Balaton district. 
Isocrinus tyrolensis major, subsp. nov. 
(Pl. I, figs. 39—50.) 
Diagnosis of the Subspecies. — Diameter of internodals absolutely 
much greater than in the type-form of the species, but height only slightly greater ; 
therefore relative height tends to be less; if diameter 100, height is 16 to 29. 
Number of peripheral crenellae in a petal more than in the type-form, viz. 8 to 
14; relatively to the diameter also their number is greater and their thickness less. 
Material. — The normal representatives of the subspecies are the following 
stem-fragments : 16 from the Quarry near Cutting I, Veszprem-Jutas Railway; 10 
from the cutting itself; and 12 from Jeruzsalemhegy. Since these seem to indicate 
that the species attained a far larger size here than in the Tyrol, it seems advisable 
to give them a distinct subspecific name. The other diagnostic characters of the 
form may be regarded as following naturally upon this increase of size, so that, in 
