417 
10—20 peripheral and ca. 6 — 8 central ones; apparently no 
pedicellariæ. The paxillar stalk rather siender; the plates are simple, 
elongate oval disks, not touching each other. — The madreporite 
fairly large, naked, nearer the edge than the centre of disk. No 
anal opening observable. 
The marginal border not very high; the inferomarginals scarcely 
extend beyond the superomarginals, their aboral end scarcely at 
all tumid. Number of marginals 40 in both specimens. Supero¬ 
marginals about twice as high as broad, not tumid, covered with 
a close coat of fine spinelets and besides bearing about in the 
middle a vertical series of 3—4, more rarely only two or as many 
as five large, siender, flattened spines, closely appressed and distal- 
wards directed, reaching to the base of those of the following plate. 
In the second specimen these large superomarginal spines are 
fewer, only one to three, and are totally wanting on some of the 
proximal plates. In the outer part of the arms the superomarginals 
are somewhat oblique, the separating lines curving distinctly 
proximad. Inferomarginals in the type-specimen nearly four times 
as high as broad, in the second specimen somewhat less high; 
they are covered by short, flattened, rather scale-like spines, and 
bear along their distal edge a series of ca. 8 longer, flattened, 
appressed spines; the 3—4 upper ones are the longest, reaching 
somewhat beyond the base of those of the following plate. These 
longer upper spines form an oblique series towards the upper 
proximal corner of the plate, and they cover another series of 2—4 
similar spines on the upper distal corner of the plate. The long 
spines on the upper end of the inferomarginals do not come into 
contact with those of the superomarginals. 
Oral interradials at the base of arm in three series, the third 
series extending in the type along five, in the second specimen 
along three inferomarginals. The second series continues in the 
type specimen for ca. Vs the length of the ray, in the second 
specimen scarcely to the middle. The first series in both continues 
almost to the end of the ray. — Adambulacrals with a comb of 6 
rather large flattened spines, the middle ones turning edge to fur- 
row. Subambulacral spines siender irregularly arranged in 3—4 
longitudinal series. — The type specimen still shows a fairly pro- 
nounced reddish colour. 
Vidensk. Medd. fra Dansk naturh. Foren. Bd, 79. 
27 
