AET.22. CYCLOSTOMATOUS BRYOZOA CANU AND BASSLEE. 7 



across the superior siibcolonies. Our specimens are not numerous 

 enough to prepare sufficient thin sections to thoroughly understand 

 this species, so that its structure still remains doubtful. They had 

 been identified as Ceriopora radiciforrriis Goldf uss, 1827 ^ but they 

 are certainly quite different from Goldfuss's figures 8a-c, although 

 it is possible that his figures 8c?, e represent the present species. 



Occurrence. — Jurassic: Birmenstorf, etc., Germany. 



Cotypes.—C^it. No. 32195, U.S.N.M. 



Fig. 1. — Oncousoecia accumulata, new species. 



A. Longitudinal section, X 12, showing the accumulation of the subcolonies. 

 An ovicell is visible near the top. 



B. Transverse section, X 12, through one of the constricted parts of the 

 zoarium. 



C. Transverse section, X 12, through a dilated portion. 

 Jurassic of Germany. 



Family MACROECIIDAE Canu, 1918. 



1918. Macroeciidae Canu, Les ovicelles des bryozoaires cyclostomes, Bul- 

 letin Society Geologique de France, ser. 4, vol. 16, p. 328.— 1920. Cantt 

 and Basslek, North American Early Tertiary Bryozoa, Bull. 106, U. S. 

 National Museum, p. 722. 



The longitudinal axis of the ovicell is parallel to the axis of the 

 tubes whose order and arrangement are disarranged. The oeciostome 

 is immense and terminal. 



» Petrefacta Germanlcae, p. 34, pi. 10, figs. 8a-e. 

 20107— 22— Proc. N. M. vol. 61 32 



