765 
of Edinburgh, Session 1871 - 72 . 
2. A. sarsii, Duben and Koren. 
More or less complete specimens or fragments of this widely- 
distributed species came up in nearly every one of the deep hauls 
of the dredge, from the Faeroe Islands to Gibraltar. One or two 
small examples of the pentacrinoid were procured in the Faeroe 
Channel. 
3. A. rosaceus , Linck. 
Frequent in water of moderate depth. Many examples of the 
form known to continental naturalists under the name of A. 
mediterraneus , Lam. sp., were dredged in the Mediterranean off the 
coast of Africa. I do not feel satisfied that this is identical with 
Antedon rosaceus of the coast of Britain, although the two specific- 
names are usually regarded as synonyms. There is a great 
difference between them in habit ; a difference which it is difficult 
to define. 
4. A. celticus , Barrett. 
This species, which is at once distinguished by the extreme 
length of the dorsal cirri, is abundant at depths of 40 to 60 fathoms 
in the Minch, and we also met with it in local patches to 150 
fathoms off the north coast of Scotland. 
The remaining three Crinoids belong to the section of the Order 
which are permanently stalked. Two of the three are new to 
science, and the third was discovered in the year 1864 by G-. 0. 
Sars, in the deep water off the Loffoden Islands. 
Up to the present time two recent species have been described 
belonging to the Family Pentacrinid^e. Both of these were known 
only from the deep water of the seas of the Antilles. Since the 
discovery of the first of these in the year 1755, they have been 
regarded with special interest, both on account of their great 
beauty, and of the singular relation which they bear to some of the 
most abundant and characteristic fossils of the palaeozoic and 
mezozoic formations. 
Pentacrinus asteria , L , the species first described by Guettard, 
and afterwards very carefully worked out by Johannes Muller, has 
a stem sometimes nearly a metre in length consisting of a multitude 
of discoidal joints about every seventeenth of which bears a 
circle of five long cirri which spread out rigidly and abruptly 
5 i 
VOE. vri. 
