PLATE 277. 



-dW\%i|n wUWilKli 



No. 612 



rig. 5 



617 

 Fig. 3. 















rig. 2. 



't 



VI 



•Xv\ 



C16 

 Fig. 4. 



,-^y%'?^:?^'r'* ^ 



Fig. 1. 



Fig. 1. The Sea-Cucumber, Pentacta frondosa, Jteger; niuoli smaller thai) natural size. (p. 838.) 



Fig. 2. The Common Sea- Urchin, Strongi/locentrotus drobachiensis A. Ag. ; side view, much smaller than natural size. 



Fig. 3. The Sand Dollar, JSchinaraohnitis parma, Gray; upper surface, with the spines mostly removed, natural 



size; a, ambulaoral zones; i, inter-am bulacral zones, (p. 839.) 

 Fig. 4. The Star-fish or "Five Finger," Asterias Forbesii, Verrill; much smaller than natural size. (p. 840.) 

 Figs. 5, 6, 7. The Jelly Fishes. Fig. 5, Zygodactyla gramlandica, Agassiz ; profile view, one-half natural size. Fig. 6, 



Auyelia flavidula, Perou and Le Sueur; dorsal view, about one-fourth natural size. Fig. 7, VaoUjlometra 



quinqmclrra, Agassiz; lateral view, one-fourth natural size. (p. 841.) 



