PLATE LXIII. 



FIGS. 



1,2. Pontigulasia rhumbleri Hopk. (p. 49) Fig. 1. Broad 

 side view of test, the transverse diaphragm discern- 

 ible about one-third the length of the test above the 

 aperture and measuring 35 n in width where it is 

 attached to the walls. Fig. 2. Oral view, showing 

 the diaphragm narrowing in its central portion. 

 x 350. 



3-7. Nebula scotica Brown, (p. 60) Fig. 3. Broad view 

 of active individual. x 400. Fig. 4. Broad view 

 of encysted animal. x 400. Figs. 57. Enlarged 

 views of portions of test (fig. 5 at the aperture). 

 After Brown. 

 8, 9. Cochliopodium obscurnm Penard. (p. 66) Side views 



of two active individuals, x 700. 



10,11. C. granulatum Penard. (p. 67) Side and vertical 

 views of active individual. x 300. 



