PLATE XXIX. 



EHIZAMMINA. — BOTELLINA. 



Figures 1-3. — Chitinous Bhizopod-tubes, probably related to 



Diam. Pase 



Rhizammina, . . . x 20 277 



,, 4. — Similar organism, with sarcode filaments (filose 



psendopodia ?) extended, . . x 30 278 



,, 5-7. — Rhizammina indivisa, n. sp., . . x 12 277 



„ 8-18. — Botellina labyrinthica, Brady, . . . x 10 279 



Figs. 8, 9. External aspect of the test. 



Figs. 10-15. Fragments laid open longitudinally, show- 

 ing the terminal chamber, and the labyrinthic 

 structure of the tubular portion. 



Figs. 16-18. Specimens broken transversely. 



