JAPANESE ASTEROIDEA. 297 



paxillœ are larger and more definitely square, and tlie lateral spine is of a 

 different shape. The armature of the adambulacral plates is different, 

 wanting altogether the comb of fom* or more spinelets rimning parallel to 

 tlie fmTow, which in Luidia chefuensis, succeeds the two single curved 

 spinelets. In like manner there is no trace of the second comb, parallel to 

 the fmTow, of fom' to six ciliary spines, probably situated on the inter- 

 mediate plate between the infero-marginal and adambulacral plates. (For 

 Liddia chefuensis, Grube, see Jahres-Ber. Scliles. Gesellsch. f. vaterl. 

 Ciütm-, 1876, p. 28.) 



"In the University collection at Breslau there is another Luidia, which 

 bears the manuscript name of Luidia singaporensis, Geube, but which 

 seems to me to be the same as von Martens' Luidia maculata, var. quinaria, 

 and different from Luidia ch^uensis. 



" I am inclined to think that the so-called variety quinaria of Dr. VON 

 Martens is really a species distinct from Luidia 'maculata.'''' 



Ives was the first to recognise clearly the identity of v. Martens' var. 

 quinaria with the L. limbata of Sladen, and he gives certain figm-es which 

 leave no doubt that he had the present species before him [Ives, '91, p. 211, 

 PI. IX, figs. 5-9J. 



Meissner mentions this species under Sladen's specific name from Yoko- 

 hama, and after citing the dimensions of Sladen's orginal specimen gives 

 those of liis own as follows [ '92, p. 189] : " Die vorliegenden Stücke erga- 

 ben : a) 11 = 104; r=16; Ai-mbreite a. d. Basis: 19 mm. b) E, = 96; r = 

 13 ; Ai'mbreite a. d. Basis : 17 mm. (No. 3338.)" 



DoDERLEiN also mentions this species as being very common [ : 02, p. 

 330] : 



" Liddia quinaria v. Martens, 



" Syn. Liddia maculata var. quinaria v. Martens ; 

 LAddia quinaria Sladen, Ives ; 

 Jjiddia limbata Sladen. 



" Sämmtliche Öarmige Exemplare von Liddia, die ich von der japanischen 

 Küste kenne, gehören zu dieser einen Ai-t. Bei kleineren Exemplaren 

 fehlen die klappenartigeu Pedicellarieu meist ganz, die an grossen Exem- 



