PLATE XVIII. 



Fig. I. Leptasterias cequalis (Stimpson). Typical form, from Monterey Bay. 



Actinal side; X i%. 

 Fig. 2. The same specimen. Dorsal side ; X iH- 

 Fig. 3. Leptasterias leptalea Verrill. Type. Ventral side ; X 1%. Sitka. 



Yale Mus. 

 Fig. 4. Orthasterias merriami Verrill, sp. nov. Type. Dorsal side; about 



natural size. 

 Fig. 5. The same specimen. Details. Actinal side; natural size. Juneau. 



Univ. of Calif. 



(38) 



