Plate 19. 

 1-8. Salenia miliaris A. Ag. 



1. Part of the actiiial system of the same specimen as PL 17, fig. 3, measuring 16 moL 



diameter ; Station 3413. 



2. Spheridia at actinostome of left anterior ambulacrum of specimen measuring 15 b 



in diameter ; Station 3362. 



3. The third plate from the actinostome of the right anterior interambulacron 



specimen of PL 17, figs. 1, 2, measuring 13 ram. ; Station 3360. 



4. Showing the striated structure of the interior of a primary plate (the third plate fij 



the actinostome) of the right anterior interambulacrum with the adjoining pbj 

 of the odd ambulacrum of the same specimen as PL 17, fig. 3, measuring 16 lui 

 diameter ; Station 3413. 



6. Showing the striated structure of primary interambulacral plate of the odd postaj 

 interambulacrum of same specimen as fig. 2, seen from the interior. 



6. Section across the fifth primary interambulacral tubercle of same specimen as fig. '. 



7. Lower ])art of primary interambulacral radiole from specimen measuring 14 mt. 



diameter ; Station 3413. 



8. Upper part of the same spine. 



