PLATE VI. 



Luidia yesoensis. 



91. Moutli-pbites. li=47mm. x 7. 



02. Tliirteeuth adarabulacral and corresponding hif(n'oraarj2;inal 

 plates. 11 = 47 mm. x 7. 



93. a-d, adambulacral spines from the innermost Uj the outermost 



in the order of the alphabet, e, adambulacral pedicellaria. 

 E = 47 mm. x 45. 



94. Madreporite. The upper side is the outer. 11 = 47 mm. x 5. 



95. 



96. 

 97. 



98. 



99. 



100. 

 101. 

 102. 

 108. 



Luidia moroisoana. 



Abactiual view, x 0.8. 



Actinal view, x 0.8. 



Mouth- plates. 11 = 194 ram. x 3.5. 



Seventeenth adambulacral and corresponding iuferomarginal 



plates. 11 = 194 mm. x 5. 

 Fifteenth adambulacral and corresponding inferomarginal i)lates. 



R = 194mm. The right side is the outer, x H. 

 Pedicellaria close to the third adambulacral spine, x 45. 

 Furrow pedicellaria. x 45. 



Pedicellaria from a superomarginal plate, x 45. 

 Superomarginal plate corresponding to the S(iventeenth iufero- 



marginal. R : 



:194 mm. x 7. 



