PLATE C. 



CARPENTERIA. — POLYTREMA. 



Figures 1-4. — Carpenteria utricularis, Carter, . 



Fig. 1. Early stage; figs. 2-4, adult specimens. 



Diam. Page 



X 15 678 



5-9. — Polytrema miniaceum, Linne, sp., . • • 721 



Figs. 5-8. Specimens illustrating the general form and 



structure of the test, . . . x 20 



Fig. 9. Minute terminal branches with apertures, . x 50 



