120 THE PALEONTOLOGY OF MINNESOTA. 
[Berenicea. 
tain, Manitoba, My belief that it will yet be found at Spring Valley, Minnesota, and 
other points in the southern part of the state, where equivalent beds are exposed, is 
therefore within the bounds of probability. 
Mus. Reg. No. 8102. 
Genus BERENICEA, Lamouroux. 
Berenicea (part.), LAMOUROUX, 1821. Exp. meth. des genres de pol., p. 80. 
Rosacilla, ¥'. A. ROEMER, 1840, Verst. des norddeutsch. Kreidegeb., p. 19. 
Berenicea, d’ORBIGNY, 1852. Pal. Fr. terr. cret., t. v, p. 858. J. HArtme, 1854, Bry de la form. 
Jurass., p.19. Utricu, 1882, Jour. Cin. Soc. Nat. Hist., vol. v, p 194, 
and 1890, Geol Sur. Ill., vol. viii, p. 368. 
Diastopora, @Orsiany, 1850, and Busk and other English authors. (Not Lamouroux.) 
Diastopora (part.), HINcKs, VINE and others, 
Saganella, HALL, 1852. Pal. N. Y., vol. ii, p. 172. 
Diastoporella, VINE, 1883. Brit. Assoc. Rep. Foss. Pol., iii; and Proc. Yorks. Geol. Soc., n. s., vol. ix, 
pt. li, p. 190. 
. 
Zoaria incrusting, forming circular or irregular patches. Individual zocecia as 
in Stomatopera and Proboscina, but contiguously arranged in more or less regular 
spreading series, 
Type: B. diluviana Lamouroux. 
For remarks relating to this genus see under Stomatopora. 
& /p 
BERENICEA MINNESOTENSIS Ulvich. 
PLATE I, FIGS. 25, 27 and 29; PLATE II, FIG. 1. 
Berenicea minnesotensis ULRICH, 1886. Fourteenth Ann. Rep. Geol. Nat. Hist. Sur. Minn., p. 58. 
Zoarium forming exceedingly thin, irregular crusts upon foreign bodies. The 
crust may be entire, with irregularly distributed and unequal non-celluliferous spots, 
or, especially at the edges of large expansions, it may throw off broad branches and 
include a few open spaces. In one example, provisionally referred here, the latter 
are so large and conspicuous that the zoarium may well be described as consisting of 
wide, irregularly inosculating branches.* Ordinarily the crust is nearly entire, and 
the non-celluliferous spaces, which, like the rest of the surface between the zoccial 
apertures, are marked with obscure transverse lines or wrinkles, constitute a con- 
spicuous feature. Zocecia more or less immersed, in the latter condition appearing 
as subelliptical convex spaces, about 0.2 mm. wide, with an oblique circular aperture, 
0.13 mm. in diameter, at their upper ends. In such examples (see fig. 29) the aper- 
ture is scarcely produced, but in others, more matured, it is prominent, while all the 
remainder of the cell is completely immersed. The arrangement of the zoecia is, 
*Perhaps this specimen is to be cousidered as indicating a departure that later on resulted in Proboscina tumulosa of this 
work. 
