ART. 22. CYCLOSTOMATOUS BRYOZOA CANU AND BASSLEE, 



Fig. 21.— Spiroclausa spiralis Goldfuss, 1827. 



A, B. Zoarium natural size and enlarged, 



C. Transverse section enlarged. 



D. Portion of a branch, enlarged. 



E. Longitudinal section, enlarged. (A-B, after D'Orbiguy.) 

 Cretaceous of France. 



Fig. 22. — Spiroclausa spiralis Goldfuss, 1827. 



A. Vertical section, X 16 . 



B. Transverse section, X 16. 



Cretaceous (Maastrichtian) : Royan (Charente inferieure), France. 



