Plate 27 



Fin. 1, 1" -1<\ Pedicellaster magister orientalis, station 4867, Sea of Japan, X100. 1, 1" 16, actinal; 

 lc, abactinal. 



2, 'In 2c. Pedicellaster magister, station 4792, small specimen with R 12 nun. 2, actinal and 



2a, abactinal, X 100; 26, Three valves of actinal pedicellaria, • 200. 2c. Same spec- 

 imen; 2 abactinal spinelets, X 100; 2d, a subambulacral; 2/, a furrow spinelet, X100. 



3, 3a. Pedicellaster typicus; 100; 3, adambulacral; 3a, abactinal spine. 



4, 4a. Pedicellaster magister megalabis, station 4333, ■ 100. Abactinal spinelets, median 



radial area; 4 = 0.5 mm. 



5, Pedicellaster magister orientalis, ■ loo. Abactinal spinelet, 0.7 mm. long. 



(i, 6a, 66. Pedicellaster magister, station 4792. ■ 100. Abactinal spinelets from radial region; 



6 = 0.5.5 mm. 

 7. Hydrasterias improvisa (Ludwig), station 3400. Crossed pedicellaria, X 200. 

 S. Hydrasterias ophidion Sladen, type. Crossed pedicellaria, 0.27 mm. X 200. 



188 



