REPORT ON THE ASTEROIDEA. 87 
this station off the coast of Portugal. But they are strongly developed in a specimen 
measuring R = 63 mm., which has twenty-eight supero-marginal plates, It is further to be 
noticed that in the last-named example the large widely spaced granules on the median area 
of the infero-marginal plates are for the first time conspicuous ; all the papilliform granules 
being more or less subequal in size and in distance apart in the earlier stages. The 
tube-feet have a small but distinct terminal knob. 
Locational Variation.—In a series of specimens dredged by H.M.S. “Triton” (Station 
11) there are distinct indications of the central conical spinelet on the actinal interradial 
plates when R= 37 mm. andr =10°5 mm. The rays are also less attenuate and broader 
at the base, and the disk is larger than in the example from the more southern station. 
There are twenty-five supero-marginal plates, and their length is rather less than in the 
example mentioned above which measures R=41 mm., the number of plates being the 
same in both. The adult specimens from this locality appear to have generally a larger 
disk than other examples which I have examined. 
Localities —Challenger Expedition : 
Station off the coast of Portugal, January 1873. (Exact date and locality not given. 
The label accompanying the specimens is simply marked, “Off coast of Portugal, Stn. I. 
to VII.” On referring to Sir Wyville Thomson’s Voyage of the Challenger, The Atlantic, 
vol. i. p. 182, et seq., I infer from the context that these examples were probably taken at 
Station V.) 
Station V. South of Cape St Vincent. January 28, 1873. Lat. 35° 47’ 0” N., long. 
8’ 23’ 0” W. Depth 1090 fathoms. Globigerina ooze. Bottom temperature 38°°5 Fahr. ; 
surface temperature 61°-0 Fahr. 
Station 47. Off the coast of North America, east of Massachusetts. May 7, 1873. 
Lat. 41° 14’ 0” N., long. 65° 45’ 0” W. Depth 1340 fathoms. Blue mud. Surface tem- 
perature 42°°0 Fahr. A young example of this (7) species. (See remarks below.) 
“Porcupine” Expedition : 
Station 19. West of Donegal Bay. Lat. 54° 53’N., long. 10° 56’ W. Depth 1360 
fathoms. Bottom temperature 3°:0 C. ; surface temperature 12°°6 C. 
Station 57.‘ In the Faerde Channel. Lat. 60° 14’ N., long. 6°17’ W. Depth 632 
fathoms. Bottom temperature 0°:8 C.; surface temperature 11°'1 C. 
Station 58.7 In the Faerdée Channel. Lat. 60° 21’ N., long. 6° 51 W. Depth 540 
fathoms. Bottom temperature 0°°6 C.; surface temperature 10°°6 C. 
“Knight Errant ” Expedition : 
Station 8. In the Faerée Channel. August 17,1880. Lat. 60° 3’ N., long. 5°51’ W. 
Depth 540 fathoms. Ooze. Bottom temperature 29°:2 Fahr. ; surface temperature 56°°5 
Fahr. 
1 These occurrences are cited in Sir Wyville Thomson’s Depths of the Sea. I have not seen the 
specimens. 
