JAPANESE ASTEEOIDEA. 



299 



The number of regular longitudinal series of large square 

 paxillae is usually three on either side of the arm (PI. VII, fig. 104), 

 and the innermost series is usually more or less irregular. In 

 very large specimens there may be four such series, and in this 

 case the third series is more regular. The marginal paxillae re- 

 presenting the superomarginals bear small, lozenge-shaped, valvate 

 pedicellarise, one plate sometimes bearing two of them. They 

 are generally more numerous at the interbrachial angle, and here 

 they are usually present not only on the superomarginal, but also 

 on the inferomaginal plates and some of the abactinal paxillae. 

 In some specimens I have seen similar but very much smaller 

 pedicellariae scattered all over the abactinal paxillae, being visible 

 to the naked eye as so many small dots, more lightly coloured 



