124 THE DEPTHS OF THE SEA. [CHAP. III. 
resembling that of Ophiomyxa, to which genus it 
seems to be allied. ‘The specimens which have been 
hitherto procured are scarcely sufficiently perfect to 
allow of its being thoroughly worked out. The other 
is a large handsome species of Ljungman’s genus 
Ophiopus. The plates covering the disk are small and 
obscure, and partly masked by a netted membrane. 
In moderate depths Amphiura balli, THOMPSON, was 
common, and we now and then dredged a stray 
example of the beautiful lttle Ophiopeltiis securigera, 
D. and K., lately added to the Shetland fauna by 
the ev. Al Merle Norman: 
It was a matter of some surprise to us as well as 
of great pleasure to bring up in many of our cold 
area hauls considerable numbers of the handsomest 
of the northern free crinoids, Antedon escrichtii. 
So far as I[-am aware, this species has not hitherto 
-been met with in the Scandinavian or Spitzbergen 
seas; all our museum specimens come from Green- 
land or Labrador. This is also the case with Cleno- 
discus crispatus. In neither instance do the speci- 
mens from the north of Scotland appear to be quite 
so large as those from Greenland. One or two 
hauls in moderate water gave us abundant examples 
of Antedon celticus, BARRETT, a form still more com- 
mon however in the Minch; and almost every haul 
we found a broken specimen or some fragments of 
Antedon sarsii. 
Once or twice we found a fragment of the stem of 
Rhizocrinus, but singularly enough no living specimen 
of this interesting little crinoid rewarded us from the 
cold water, although our conclusion seemed to be 
just, that the Arctic indraught sets into the Froe 
