PLATE XII. 



FIG. I. Henricia tumida Verrill. Type. Dorsal side; X *% Yale Mus. 



FIG. 2. The same specimen. Actinal side; X 1/4- 



FIG. 3. Henricia tumida borealis Verrill. Type. Dorsal side ; about 7/10 



natural size Dutch Harbor. Yale Mus. 



FIG. 4. The same specimen. Actinal side; 7/10 natural size. 

 FIG. 5. Henricia leviuscula (Stimpson). Typical form. Dorsal side; % 



natural size. 

 FIG. 6. Henricia leviuscula (Stimpson), var. dyscrita Fisher. Actinal side; 



y$ natural size. 



(26) 



