PLANCHE XI. 



Fig. 83. — Ophioglypha inflata Kcehler, face dorsale Gr.=20. 



Fig. 84. — Ophioglypha m/lata, isice YentraXe. Gr.=20. 



Fig. 85. — Ophioglypha inflata, face lat^rale d'un bras. Gr. = 20. 



Fig, 86. — Ophiothrix aristulata, var. Investigator is Kcehler, 

 face dorsale. Gr. = 5. 



Fig. 87. — Ophiothrix aristulata, var. Livestigatoris, face venfcrale, Gr. = 5. 



Fig. 88. — Amjyhiura frigida Kcehler, face ventrale. Gr.= ll. 



Fig. 89. — Ophiacantha sociahilis, Tpiqusints du disque. Gr, = 30. 



