14 Pub. Puget Sound Biol. Sta. Vol. 2, No. 32. 



PLATE 5 



a., Anus. 



a. t., Azygos tentacle. 



m., Mouth. 



m. p., jNIadrepore. 



*., Stomach. 



Fig. 16. Aboral view of young starfish after complete resorbtion of 

 the preoral lobe. X 36. 



Fig. 17. Oral view of the same specimen as figure 16. Stomach par- 

 tially protruded ; 6th ray indistinguishable from the others ; terminal, am- 

 bulacral, preoral and epioral spines ; 5 pairs of tube- feet in each ray. 

 X 36. 



