REPORT ON THE ASTEROIDEA. 409 
Chorology of the Genus Linckia. 
a. Geographical distribution :-— 
AtLantic: Three species between the parallels of 40° N. and 20° S. 
Linckia bowwiert and *Linckia guildingu, from the Cape Verde 
Islands, and the latter also from the Bermudas, Antilles, Abrolhos 
reefs, Vera Cruz, and Bahia. Linckia nodosa from Tortugas. 
Inpian Ocean: Six species between the parallels of 30° N. and 30° §. 
Linckia ehrenbergu, *Linckia miliaris, and Linckia multifora, 
from the Red Sea and Mozambique ; the last two from Mauritius, 
and Linckia miliaris also from Zanzibar; both extend into the 
Eastern Archipelago and Pacific. Linckia erythrea is reputed to 
be from the Red Sea. Linckia marmorata and *Linckia pacifica 
from Mauritius ; the former is also recorded with doubt from Port 
Molle, Australia (fide Bell); Linckia pacifica also occurs off the 
Nicobar Islands and extends into the Pacific. 
Eastern ARCHIPELAGO: Three species between the parallels of 20° N. and 20° S. 
*Tinckia miliaris, from Flores, Timor, Celebes, Batjan, the Philip- 
pine Islands and North Australia, and extending into the Indian 
and Pacific Oceans. Linckia multifora, from Flores, Celebes, 
Amboina, and extending into the Indian and Pacific Oceans. 
Linckia rosenbergi, a doubtful species from Amboina. 
Paciric: Three or perhaps four species between the parallels of 30° N. and 30° S. 
*Linckia miliaris and Linckia multifora, from New Caledonia, 
and extending into the Eastern Archipelago and Indian Ocean; the 
latter species is also found at the Sandwich Islands. *Lincha 
pacifica, from Tahiti and Samoa, and extends into the Indian Ocean. 
Linckia columbix, from the west coast of Columbia. 
8. Bathymetrical range: All the species are confined to shallow water. 
y. Nature of the Sea-bottom: Recorded in very few instances: frequently on coral 
reefs. 
The localities of the following species are unknown, and the species themselves are of 
extremely doubtful value :— 
Linckia franciscus, Nardo. | Linckia intermedia, Gray. | Linckia pulchella, Gray. 
The species collected by the Challenger Expedition are indicated by an asterisk. 
(ZOOL. CHALL. EXP.—PART LI.—1888.) 52 
