Plate 21. 



Fig. 1. Textularia strict a. X 15. 



2. Textularia abbreriata. X 35. a, front view; b. apcrtural vimv. 



3. Textularia goesii. X 35. 



4. Textularia siphoniferu. X 75. a, front view; b, upertural view; specimen 



with bifurcating rows of pores. 



5. Textularia siphoiiifera . X 35. a, front view; b, side view. 



6. Textularia siphoniferu. X 35, microspheric sj)eeimeu with twisted early 



portion. 



7. Textularia siphuiii/era. X 35, speeimen with \er\' huge openings, two fused. 



510 



