680 
BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 
Genus REPTOMULTICAVA D’Orbigny, 1852. 
1852. Reptomulticava D’Orbigny, Paleontologie franpaise, descriptions des animaux in- 
vertebres, Terrain Cretaee, vol. 5, p. 1032. 
The zoarium is multilamellar, branched or massive. The zooecia are short 
and expand rapidly. 
Genotype. — Reptomulticava heteropora Homer, 1839. 
Range. — Neocomian, Miocene. 
B t *10 
Fig. 221.— Forma Reptomulticava D'Orbigny, 1852. 
A-C. Reptomulticava 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. Reptomulticava lobosa 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. Reptomulticava 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- 
