PLATE XLVII. 



FIGS. 



1-10. Trinema enchelys (Ehrenb.) Leidy. (p. 86) Fig. 1. 

 Side view of active individual. Figs. 2, 3. Side 

 and oral views of an empty test. Fig. 4. Dorsal 

 view of an active individual. Figs. 6, 6. Dorsal 

 views of active individuals. After Cash. Fig. 7. 

 Conjugation of two individuals. Fig. 8. Side view 

 of a test having lateral compression. Figs. 9, 10. 

 Oral and side views of an empty test. All x 500. 

 11-21. T. lineare Penard. (p. 91) Figs. 11-15. Outlines 

 of tests. Fig. 16. Abnormal test with evaginated 

 aperture. Figs. 1721. Active individuals. All 

 x 500. 



