964 
THE VOYAGE OF H.M.S. CHALLENGER. 
f. Rays, with no definitely defined lateral wall. Median 
line of abactinal spinelets zigzag. Intermediate 
spines may be wanting altogether, or may be rather 
numerous, but small. Rays shorter than in the 
preceding species . ‘ ; . : 0 : 2 africana. 
Chorology of the Genus Asterias. 
a. Geographical distribution :— 
Attantic: Forty-eight or forty-nine species, between the parallels of 82° N. 
and 40° S. 
Asterias grenlandica, from Greenland and extending northward 
to Discovery Bay (lat. 81° 41’ N.), from Assistance Bay, Labrador, 
and Grand Manan, and off the islands of Spitzbergen and Nova 
Zembla.  Asterias spitzbergensis, Asterias gunneri, and Asterias 
panopla, from Spitzbergen, the latter extending to the Scandinavian 
coast and into the Kara Sea. Asterias hyperborea and Asterias 
normani, off Beeren Island. Asterias linckw, between Beeren 
Island and Spitzbergen, and extending to the north coast of Nor- 
way. Asterias polaris, from Greenland and Labrador.  Asterias 
vulgaris, extending from Labrador to Cape Hatteras. “Asterias 
(Hydrasterias) ophidion, south of Halifax, Nova Scotia. “Asterias 
brachiata, Asterias forbesi, Asterias littoralis, Asterias tenera, * Aste- 
rias (Leptasterias) compta, Asterias lacaz, Asterias tanneri, and 
Asterias briarcus, off the coast of the United States of North America. 
Asterias linearis and Asterias angulosa, from the Alligator Reefs off 
Florida. Asterias contorta, Asterias fascicularis, and Asterias gra- 
cilis, from the West Indian Islands. Asterias mexicana, from Vera 
Cruz.  <Asterias hartii, from Brazil. Asterias atlantica, from the 
Abrolhos reefs and Bermuda, and reported also from Cuba. (The 
distinction of this species from Asterzas tenuispina seems doubtful.) 
Asterias bellii, off the eastern coast of Patagonia. Asterias antare- 
tica, Asterias alba, Asterias obtusispinosa, Asterias verrilli, * Aste- 
rias glomerata, and *Asterias cunninghami, from the Strait of 
Magellan, the latter also from the Falkland Islands, and passing to 
Tom Bay, in the Pacific area of the Strait. Astervas sprrabilis, from 
the Falkland Islands. Asterias rugispina, from Tierra del Fuego 
and Port Famine, Strait of Magellan. Asterias georgiana and 
Asterias steineni, from the Island of South Georgia. 
Passing now to the northern area on the eastern side, Asterias 
disticha, from the Kanin Peninsula, White Sea. *Astervas (Stolas- 
