Plate 25. 

 1-10. Podophora atrata Agass. 



1. Seen from abactinal side, with spines, measuring 14 mm. in diameter. 



2. The same, denuded, seen from the actinal side, measuring 8 mm. in diameter. 



3. The same seen from the abactinal side. 



4. Profile of the same, facing the bivium and the odd posterior interambulacrum. 



5. Interior view of the test of the same showing the abactinal system. 



6. Left posterior ambulacral plates adjoining the actinal system, 



7. Odd anterior ambulacrum at the ambitus. 



8. Part of the abactinal system, the left anterior interambulacral and genital plates. 



9. The odd anterior ambulacral plates adjoining the actiual system, of a denuded speci- 



men measuring 45 mm. in diameter. 

 10. The same ambulacrum, partly on the actinal, and partly on the abactinal side of the 



ambitus. 

 Figures 1 to 8 are drawn from the same denuded specimen, measuring 8 mm. in diameter. 

 Hawaiian Ids., A. Garrett Coll. 



