21 1 



plates corresponding with the large anchors in the posterior end 

 (Fig. 28. 9-10, 12) measure ca. 130 ja in length by 80 /n in width. 

 The large holes in the anterior end of the plates are toothed. In the 

 articular end there are besides the paired side-holes 5 — 7 small, 

 smooth holes the two of which are usually situated in the "bridges" 

 across the side-holes. Corresponding with the small anchors from 

 the posterior end of the specimens, there are some nearly oval 

 plates (Fig. 28. 11), which measure ca. 100 x 60 /a and are per- 

 forated in the same way as the large plates. The plates from the 



Fig. 29. Rods and miliary granules of Leptosynapta inhaerens 1 and 

 Leptosynapta tenuis 2-6. 1—6 X 550. 



anterior end of the specimens (Fig. 28. 6-8) measure ca. 110 fi in 

 length by 70 ^ in width. They are very like the small plates from 

 the posterior end of the specimens, but they have always some 

 more holes through their posterior end. 



Miliary granules are found in the ambulacra and in the small 

 white papillae. In most of the specimens examined, the granules 

 in the ambulacra are small, rounded or oval plates (Fig. 29. 3), 

 those in the papillae differing from them in being "chela-shaped" 

 (Fig. 29. 5). In other specimens there is but one sort of miliary 

 granules (Fig. 29. 6) which are then of somewhat varying shape. 

 The rods in the digits (Fig. 29. 4) are irregularly shaped, but di- 



14* 



