680 BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 



Genus REPTOMULTICAVA D'Orbigny, 1852. 



1852. ReptomuUicava D'OBBIGNY, Paleontologie franchise, descriptions des animaux in- 

 vertebres, Terrain Cr6tace, vol. 5, p. 1032. 



The zoarium is multilamellar, branched or massive. The zooecia are short 

 and expand rapidly. 



Genotype. ReptomuUicava "heteropora Romer, 1839. 

 Range. Neocomian, Miocene. 



I 6 



J ,6 



FIG. 221. Forma ReptomuUicava D'Orbigny, 1852. 



A-C. ReptomuUicava heteropora Romer, 1839. A. Zoarium, natural size, from the Neoco- 

 mian of Germany. B. Section showing the multilamellar structure, X 10. C. Portion of the sur- 

 face, X 13. 



D, E, F. ReptomuUicava, loliosa Keeping, 1883. D, E. Zoarium, natural size, and portion of 

 the surface enlarged, from the Lower Greensand of England. (After Keeping, 1883.) F. A verti- 

 cal section across part of a zoarium, X 13. 



G-J. ReptomuUicava fungiformis Gregory, 1909. G. Zoarium, natural size, from the Lower 

 Greensand of England. H. Portion of the surface, X 10. I. Transverse section across a zoarium, 

 X 6. J. Vertical section across the same zoarium, X 6. (A-C, F-J, after Gregory, 1909.) 



Genus DEFRANCIOPORA Hamm, 1881. 



1881. Defranciopora HAMM, Die Bryozoen des Maastrichter Ober-Senon. Part 1, Die 



Cyclostomen Bryozoen, Berlin, p. 39. 



" The zoarium is formed of several saucer-shaped or discoid subcolonies in a 

 vertical series. The apertures cover the upper, outer rim of the subcolonies: the 

 lower exposed surface of each subcolony is covered by a calcareous layer (epizo- 



