357 
of Ediiiburgh, Session 1883 - 84 . 
3. Rliizocrinus rawsoni, Pourt., 1872. 
Rhizocrinus lofotensis, Wyv. Thomson, 1872 (pars). 
Rhizocrinus raivsoni, P. H. Carpenter, 1882. 
Democrinus Parfaiti, Perrier, 1883. 
H.M.S. “Porcupine,” 1869. Station 42. Lat. 49° 12' N., 
long. 12° 52' W. 862 fathoms. Temp. 39°’7 F. Ooze with sand 
and shells. Two armless specimens. 
Station 43. Lat. 50° 1' N., long. 12° 26' W. 1207 fathoms. 
Temp. 37° '7 F. Globigerina ooze. Two young specimens, one 
without arms. 
RemarlhS. — These four specimens, as already indicated, were really 
the first discovered examples of R. rawsoni ; but they differ from 
R. lofotensis far less than the Caribbean individuals do."" [Those 
from Station 42 were noticed by Sir Wyville at the time they were 
obtained, and described as unusually large examples of R. lofotensis. 
But I am not aware that he ever made a closer examination of tbem. 
After reading Pourtales’ descrij^tion of the Caribbean R. rawsoni., 
I came to the conclusion that tlie “ Porcupine ” specimens should 
really be referred to this type ; and this view was confirmed when 
the originals of Pourtales’ description were sent to me last year 
(1882), as I have pointed out in my “ Blake” report. 
The two young individuals from Station 43 seem to have been 
altogether overlooked ; for they are not mentioned either in the 
Eoyal Society’s Beport, The Depths of the Sea, or the paper on 
“Porcupine” Crinoids. They did not come into my hands until 
August last, having been discovered by Mr Murray among Sir 
Wyville’s collections at the University. They are the youngest 
specimens of this type which I have seen. Each has 28 joints in 
the stem, from the calyx to the root ; but its length, which is only 
20 mm. in the smaller, is 2 4 ‘5 mm. in the larger individual. The 
majority of the joints are cylindrical and elongated, only a very 
few at the base of the stem showing the characteristic dice-box 
shape with expanded ends. The length of the calyx is almost the 
same in both specimens, 1 *8 mm. ; though its diameter across the 
* “The Stalked Crinoids of the Caribbean Sea,” Bull. Mus. Comp. Zool., 
vol. X. No. 4, pp. 174, 175. 
2 A 
VOL. XII. 
