252 MYllIOZOIDJE. 



They may be compared with the ovicelligerous cells 

 of S. hyalina or of Eucratea, which are more or less imper- 

 fectly developed. In the former the fertile zooecia are 

 produced upon the primary layer of cells, and are always 

 atrophied and small in size, closely resembling in character 

 and position the structures in question. The peculiarity in 

 the present species seems to be that the two conditions of 

 the fertile cell coexist. Eschara Brongniartiana, D'Orb.*, 

 from Chili, is furnished with a large number of similar 

 structures distributed over the surface of the cells. 



Another peculiarity of this species should be noticed 

 the tendency to the development of single cells and groups 

 of cells over the surface of the zoarium, forming in fact 

 a second layer. These secondary cells are more tumid 

 than the primaries, and very irregularly disposed. They 

 never exhibit the precise linear arrangement which charac- 

 terizes the latter, but are strewn, as it were, over the 

 primitive layer. 



SCHIZOPORELLA sANouiNEA, Norman. 



Plate XXXIX. figs. 0, 7. 



1 1 1 \n:-< IIAKA SANGCINEA, Norman, Quart. Journ. Micr. Sc. (n. s.) viii. 222, 



pi. vii. figs. 9-11. 

 K-niAKK.u.A SAKGUINKA, Smitt, Flor. Bryoz. pt. ii. 54, pi. viii. figs. 164, 165. 



Zooecia subquadrangular, arranged with great regularity 

 in linear series, quincuncial, flattened, bordered by 

 raised lines, thickly covered with large, circular perfora- 

 tions, the perforations sometimes separated by nodulous 

 reticulated ridges ; orifice arched above, a central sinus 

 on the lower margin, and on each side of it a very small 

 notch-like indentation. Sometimes a small avicularium, 



* Voyage dans 1'Amer. mi-rid., vol. v. part 4, page 14, pi. vi. fig. 12. 



