JAPANESE ASÏEEOIDEA. 305 



seven to ten short and thick central spines, and a row of ciliary 

 peripherals ; a small pedicellaria may sometimes be present in 

 addition, and the peripheral row may be irregularly double in the 

 larger plates. The paxillae of the third row present nothing of im- 

 portance different from those of the second ; they are on the 

 whole smaller than the latter. The paxillae along the middle of 

 the arms do not form any regular longitudinal series, and bear 

 according to their size each 5-10 granuliform centrals and a row 

 of ciUary peripherals ; one or two of the centrals may sometimes 

 become larger and assume the form of a conical spine. The 

 paxillae of the disk are similar in their general character to those 

 of the middle part of the arms ; I have not observed any 

 pediceUariae on them. 



Madreporite and Terminal plate. — The madreporite is completely 

 hidden from view. The terminal plates are rather small, horse- shoe 

 shaped and covered with granules ; they are colourless and rela- 

 tively conspicuous. 



Locality. — Moroiso (Misaki) ; littoral. 



This species can easily be distinguished from L. aspera 

 Sladen, L. hystrix Fisher and L. magnifica Fishee by the pre- 

 sence of a slender forficiform pedicellaria at the furrow end of 

 the adarabulacral plate, besides some other characters. It appears 

 to be very closely related to Luidia intégra recently described by 

 Kœhler [ :10, p. 18], but is distinguished from it by the presence 

 of pediceUariae on the marginal paxillae. 



Specimen in S. C. 



