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 bouvieri and "Linckia guildingii, from the Cape Verde 

 Islands, and the latter also from the Bermudas, Antilles, Abrolhos 

 reefs, Vera Cruz, and Bahia. Linckia nodosa from Tortugas. 



Indian Ocean : Six species between the parallels of 30° N. and 30° S. 



Linckia ehrenbergii, ^Linckia miliaris, and Linckia niultifora, 

 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 erythrsea is reputed to 

 be from the Eed 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. 

 !k Linckia 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. 



Pacific : Three or perhaps four species between the parallels of 30° N. and 30° S. 

 *LAnckia 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. *Linckia 

 pacifica, from Tahiti and Samoa, and extends into the Indian Ocean. 

 Linckia Columbia?, from the west coast of Columbia. 



/9. Bathymetrical range : All the species are confined to shallow water. 



7. 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 



