706 Proceedings of the Royal Society 
naturalists. Judging from the description above cited, it seems to me 
that our variety occupies an intermediate position between the typical 
form of Crossaster papposus and the Solaster ajffinis of Danielssen 
and Koren; and thus appears to me to strengthen the opinion else- 
where expressed,* that the latter form is probably a locational 
variation of the type of C. papposus. 
10. Asteracanthion rubens (Linnd), Muller and Troschel. 
Station 3. August 3 and 4, 1880. Lat. 59° 12' 1ST., long. 5° 57' 
W. Depth, 53 fathoms. Three examples ; two of them being small. 
The large specimen is remarkable for the elongation and attenuation 
of the radii, and for the comparative paucity and smallness of the 
dorsal spinelets. These are minute, conical, and almost hidden in the 
membrane. The margin of the dorsal area is bounded by a regular 
and prominent line of spinelets, and the median dorsal line is also 
more or less regular. The other spinelets are quite irregular in 
disposition and though moderately numerous are inconspicuous in 
consequence of their small size. The sides of the rays are deeper 
and more perpendicular than usual. Lateral spines, 2 or 3 in 
number, placed obliquely. No spines on the sides between these 
spines and the true dorsal series, and no spines between the lateral 
series and the ambulacral spines. Forficiform pedicellarise very 
numerous on the ambulacral spines, especially in the inner portion of 
4 
the furrow, also on the sides of the ray ; smaller and less numerous 
on the dorsal area. Forcipiform pedicellarim comparatively scanty, 
a few at the base of the marginal dorsal spines, and a greater number 
at the base of the lateral spines ; a few irregularly distributed over 
the dorsal area. This specimen in some respects simulates the habit 
of A. glaciate in a striking manner. 
11. Asteracanthion miilleri , Sars. 
Station 3. Aug. 3 and 4, 1880. Lat. 59° 12' N., long. 5° 57 
W. Depth, 53 fathoms. A single example. 
II. Station- Lists. 
The following lists will show at a glance the association of the 
species at each of the stations. 
* Duncan and Sladen, A Memoir on the Echinodcrmata of the Arctic Sea to 
the West of Greenland, London, 1881, p. 39. 
