A^D ECHINOIDEA OF THE KOEEAN SEAS. 443 



liferus ; and the lateral keels which bound it are more strongly 

 developed. The anterior lateral ambulacra are very broad, whilst 

 tlie posterior petals are shorter, more pear-sbaped, and have a 

 concave curve outwardly. 



Conclusion. 

 The following list will indicate the extremes, as at present 

 known, of the geographical distribution of the species comprised 

 in the above collection : — 



ASTEROIDEA. 



Astropecten formosus, mihi Korea. 



■ japonicus, M. & T Japan. 



poly acanthus, M.. hH Red Sea, Zanzibar, Australia, Fiji 



Islands, Japan. 



Stellaster Belcheri, Gray New Guinea, N. Australia. 



Cribrella densispina, mihi Korea. 



Asteracanthion rubens, Linne Japan, N, Atlantic. 



ECHINOIDEA. 



Strongylocentrotus intermedins Seghalion, Japan, Australia. 



(Barn.), A. Ag. 

 Echinometra lucunter (Leske), Bl. . Red Sea, Indian Ocean, Society 



Islands, Sandwich Islands, Japan. 

 Temnopleurus HardwicJcii (Gray), Japan, Unalaska (Dull, Smithson. 

 A. Ag. coll.). 



Reynaudi, Ag Ceylon, Malacca, N. China seas. 



toreumaticus (Klein), Ag Persian Gulf, Siam, Philippine 



Islands, N. China seas. 



Salmacis sulcata, Ag Red Sea, Indian Ocean, Australia, 



China. 

 EcMnanthus testudinarius, Gray . . Red Sea, Australia, Japan, Sand- 

 wich Islands, California. 

 Echinolampas oviformis (Gmel.), Red Sea, Cape of Good Hope, 



GraJ^ Molucca. 



Echinocardium australe. Gray .... South Africa, New Zealand, Australia, 



China, S. Japan. 



Schisaster ventricosus, Gray Siam, Hongkong, Fiji Islands*. 



An analysis of the above will show tliat, out of the sis Asteroids, 

 three ai-e additions to the fauna of Japan, viz. Astropecten formo- 

 sus, Stellaster Belcheri, and Crihrella densispina. Of these, Stel- 

 laster Belclieri has hitherto been known as inhabiting IS. Australia 

 and New Gruinea only ; Astropecten formosus may be regarded as 



* In drawing up this list, I am indebted for a number of citations of collec- 

 tion to Mr. Alexander Agassiz's " Kevision of the Echini," 111. Cat. Mus. Comp 

 Zool. Harvard, vii. 1872-74. 



