Crinoidea, Encrinidae. 
13 
Ettcrinus cancellistriatus n. sp. 
(Plate I, figs. 11—22.) 
Diagnosis. — Entrochi with straight side-faces, and of small diameter 
(1—4 mm.). Joint-faces with small roughened central area, front which radiate fine 
ridges, increasing by dichotomy or intercalation, and composed of concresced granules 
with a concentric arrangement varying in distinctness. 
Material. — To this are referred 52 fragments front the Cassian beds of 
Cserhät, 2 from bed e of Section VI, Veszprem and 6 from Veszprem, Giricses 
domb, of which 2 are front the lower stratified limestone. The original of fig. 13, 
front Cserhät, is selected as holotype. 
Description of specimens. — The longest entrochus consists of seven 
columnals. Others consist of from 2 to 4, but most of the specimens are isolated 
trochitae. 
Side-faces of entrochi straight; side-faces of columnals have a slight convex curve. 
Sutures not crenelate. 
The height of the columnals in any one entrochus is about the same; but 
there is considerable Variation in the relative heights of different specimens, as shown 
by the following measurements in millimetres : 
Diameter . 
. 14 
1-4 
1-6 
2-5 
27 
27 
27 
34 
3'9 
Height . . 
. l'O 
1'23 
17 
T4 
0'9 
14 
1-3 
1-3 
T0 
Ratio . 
. 09 
0-87 
1-06 
0-56 
0-3 
0-4 
0-48 
0-42 
075 
On the whole, these nuntbers follow the rule that the ratio of height to dianteter 
is greater in younger stems. The last of these is the only one of the sixty that 
exceeds 34 mm. diameter; its joint-faces are not clearly shown, and it is just possible 
that it does not belong to this species. 
Joint-faces: — lumen minute; area small, slightly roughened, apparently not 
raised. The ridges radiate to the periphery, and may either dichotomise as they 
go or be increased in number by the intercalation of similar ridges. Well-preserved 
faces show fine concentric grooves, which cut across the radiating ridges and give 
them the beaded or cancellate appearance that has suggested the name. In the 
strength of the ridges and of the concentric grooves, as also in the extent of the 
central area, there is considerable Variation. The number of ridges tends to increase 
with the diameter of the joint-face but the ratio is not constant. Thus — 
in a columnal T2 mm. diameter, about 18 ridges reach the periphery 
» 
T2 
» 24 
» 
» 
» 
» 
2-0 
» » 42 
» 
» 
» 
(some quite short) 
» 
24 
» » 46 
» 
» 
» 
» 
2-6 
» 64 
, » 
» 
» 
(particularly delicate) 
» 
34 
» » 54 » 
» 
» 
» 
(very delicate) 
The invisibility of crenellae on the sutures is due to the tenuity of the ridges. 
Relations of the species. — These joint-faces closely resemble those of 
the striate type in Encrinus granulosus. That, in fact, is why the columnals are 
referred to Encrinus. The difference lies chiefly in the small size and greater fineness 
