PLATE V. 



ASTKOPHYTID.2E. 



Figure 1. ASTROPHYTON AGASSIZII, Stimpson. Abactinal aspect, reduced about one third. 



2. One mouth-angle of a much smaller specimen, magnified. 



3. Portion of a ray, abactinal aspect, magnified. 



4. Portion of a ray below the first forking, actinal aspect, magnified. 



5. Portion of a ray, side view, magnified. 



6. Portion of a ray near the extremity, magnified. 

 6 a. One of the hooklets, magnified. 



