168 SVEN LOVEN, ON THE ECUIXOIDEA DESCRIBED BY LINN.EUS. 



is to be referred. It is evidently a Schizaster Ag., and one 

 of the groiip cliaracterised by only two sexual pores. Attaching 

 due weiglit to the word »ovatus», which excludes the Sch. 

 ventricosus Gray'), and setting aside the Sch. Jukesi Gray-) 

 which grcatly needs reconsideration, we are left to choose be- 

 twecn the Sch. caualiferus Lamck. of the Mediterranean, and 

 the Sch. japonicus Al. Agassiz^) of the seas of Eastern Asia, 

 from Japan to the Arafura and Java Seas. Both species used 

 to be represented in tlie Museums of the time, the former in 

 those of Italy, as attested by Aldroyandi, Imperati, Gualtieri, 

 BoNANNi, the latter in those of ■Hollan(]. The rude fio-ure in 

 the »Raritcit-kammer>, which cannot well be taken for anv- 

 thing else, was drawn from a specimeu contributed by d'Acquet 

 who probably had it from the author. Houttuyn, who took 

 some pains to make out the Linnsean Echini, had a tigurc 

 made, as good as any in modern works generally, which evi- 

 dently represents the Sch. japonicus; he adds that the origi- 

 nal was believed to have come from the East Indies. The 

 specimen described by Linn^eus made part. of the Dutch set 

 of 1751, and it can scarcely he doubted that, like the rest 

 of those thirteen species, it was assumed to have come from 

 some Dutch settlement in the tropical parts of the Old World, 

 and accordingly was marked: Habitat in Oceano Indico. Thus 

 the Echinus lacunosus becomes: 



Schizaster lacunosus L. 



RuMPH. Amb. p. .'3 G, t. XIV, fig. 2. 



1758. Echinus lacunosus L. S. X. ed. 10, I, p. 665. 



» » * 1764. M. L. U. p. 713. 



» 1767. S. X. ed. 12, p. 1104. 



» » » 1770. Houttuyn, Xat. Hist., 



XIV, p. 522, t. 114, f. 6, 



orig. 



» •>' » 1775. Stat. Mueller, X^at. Syst., 



VI, p. 153, t. 8, f. 6, imit. 



Houttuyn. 



') Gatalogue Rec. Echinida Brit. Mus. I. p. CO, t. 4, f. 2. Al. Agas- 

 Siz. Rep. Challenger, p. 204, t. XXXVI. f. 1—3. 

 = ) ]. c, p. 61, t. :3, f. 4. 

 3) Rep. Challenger, p. 202, t. XXXVI, f. S— 13. 



