PLATE VI. 



Fig. I. Glyphaster anomalus (Fisher) Verrill. Actinal side; X i3^. British 

 Columbia. 



Fig. 2. The same specimen. Dorsal side; X i%. 



Fig. 3. Dermasterias imhricata (Gnibe) Perrier. A young specimen, six- 

 rayed. Dorsal side; X i^. 



Fig. 4. The same, adult. Details of ventral side ; P, P, pedicellariae ; X 2. 



Fig. 5. The same specimen. Portion more enlarged. P, P, bivalved pedicel- 

 lariae ; P', P\ trivalved pedicellariae ; X 4. 



(M) 



