66 
the hoof reaching the ground, and also the very long aboral pri¬ 
mary spines reach, or almost reach, the ground with the point, as 
seen in figure 2. This is really one of the finest Echinoids in 
existence. It was due to the fortunate circumstance that the trawl 
had been only a very short time on the bottom, and the contents 
thus very small, that these two specimens came up in such excel¬ 
lent condition. The spines, especially those of the oral side, are 
so thin and fragile that they break exceedingly easily. In spite of 
a very careful preservation they also suffered somewhat through 
the transport, the figure being, therefore, partly a reconstruction. 
But one of the specimens is still sufficiently well preserved for 
proving the correctness of the figure. The upward direction of the 
spines, as hitherto known from preserved specimens, is accordingly 
unnatural and due to preservation. That also the other, related 
species with such long, curved aboral spines will prove to have 
the oral spines provided with a hoof and to walk on them in the 
same way as does the present species, may well be suggested. 
A very interesting find was also that of about a dozen specimens 
of Opechinus spectabilis, hitherto known only through the single 
specimen dredged by the “Challenger” at the station b. of Taam 
(mentioned by Agassiz in his Report on the “Challenger Echi- 
noidea under the wrong name of Temnopleurus Hardivickii). It was 
taken at St. 46, very close by the place of the said “Challenger 
station. This dredging also yielded several very young specimens 
of Metacrinus. On the other hånd, I was disappointed in not getting 
any specimens of Moiropsis clciudicans, a very interesting Spatangoid, 
known from this place alone (“Challenger” St. 192); the no less 
interesting Catopygus recens appears to be represented in the material 
from here by a very young specimen. Upon the whole, the Cassi- 
duloids, otherwise so sparely represented in recent times, are ex- 
ceptionally well represented in this region. A large fine Echino- 
IciJTipas was fairly common in deeper water, Echinohrissus cpigonus •* 
in shallower water (though generally only found as dead tests), 
also a fine new type of Cassidulids was found, and a doser exam- 
ination of the material collected will probably reveal still other forms. t| 
Dredgings in shallower water likewise gave excellent results. 
Especially off Elat (St. 24), in a depth of 100 Meters, an exceed¬ 
ingly rich fauna was found, numerous Gorgonids and Comatulids 
