PLATE XXXV. 



FIG. I. Orthasterias columbiana Verrill. Type. Same specimen as pi. xxiv, 

 fig. 4. Dorsal side ; $4 natural size. Yakutat. Yale Mus. 



FIG. 2. Luidiaster dawsoni (Verrill) Ludwig. Type. Same specimen as pis. 

 xxxin and xxxiv. About Y$ natural size. Geol. Surv. Canada. 



