ABT.22. CYCLOSTOMATOUS BRYOZOA CANU AND BASSLER. 21 



compressed and increasing gradually in thickness toward the lip, 

 which is about double as thick as the proximal end. 



Like Levinsen, we have f oimd our specimen in a lot of M eliceritites 

 gracilis Goldfuss, 1827. It appears to us more poorly preserved than 

 Levinsen's example, but as it preserves a kind of eleocellarium we 

 figure it. On the greater part of the zoarium the peristome is much 

 thinner than that figured by Levinsen. 



Occurrence. — Cretaceous (Cenomanian) : Essen, Germany. 



PUsiotype.—C'At. No. 68914, U.S.N.M. 



Genus MICROECIA Canu, 1918. 



1918. Microccia Canu, Les ovicelles des bryozoaires cyclostomes, Bulletin 



Soci6t6 G§ologique de France, ser. 4, vol. 16, p. 326.— 1920. Canu 



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



National Museum, p. 722. 



The ovicell is very small, and it is spread between only four tubes ; 



the oeciostome is small and hardly salient. 



Genotype.— -Ber'enicea sarniensis Norman, 1864. 



MICROECIA DENISI, new species. 



Plate 2, fig. 11. 



Description. — The zoarium is cylindrical, bifurcated. The tubes 

 are indistinct ; the peristomes are thin, orbicular, arranged in regular 

 quincunx, little salient. The ovicell is small, somewhat elongate, 

 nonsalient, finely punctate, the oeciostome is quite small, terminal, 

 nonsalient, placed in the vicinity of the peristome. 



Diameter of peristome 0.18-0.20 mm. 



Distance between orifices 0. 40 mm. 



Separation of orifices .80-1.00 mm. 



Diameter of branches 2. 5 mm. 



Affinities. — The micrometric measurements of this species are much 

 larger than those of Mecynoecia stipata and Mecynoecia ramosissima 

 D'Orbigny, 1851. Its ovicell is of a very different type. It is 

 smaller than a tube, turned toward the bottom, perforated at its base 

 by a sort of spiramen. 



It is important to note the amount of the separation of the orifices. 

 More often the distance between the orifices and the separation are 

 very similar. Here, on the contrary, they are quite dilfferent. 



We dedicate this species to the young French naturalist, Marcel 

 Denis, to encourage him in the study of the bryozoa. 



Geological distribution. — Cretaceous (Turonian) : Ruille-Ponce 

 (Loir-et-Cher), France. 



Holotype. — Canu collection. 



Measurements.- 



