NORTH AMERICAN EARLY TERTIARY BRYOZOA. 
669 
Vernations . — Our zoarium is unfortunately incomplete. We can note, however, 
the great irregularity in the arrangement of the tubes; they are more scattered on 
one branch than on another; the length of their peristomie is quite variable; the 
separation of the peristomes varies from one to two times. It is impossible to 
clearly characterize this species. 
Occurrence . — Jacksonian (Zeuglodon zone) : Bluff on south side of Suck 
Creek, Clarke County, Mississippi (very rare). 
Holotype. — Cat. No. 65295, U.S.N.M. 
Forma BERENICEA Lamouroux, 1821. 
1821. Berenicea Lamouroux, Exposition Methodique lies polypiers, p. 80. 
The zoarium is a thin, unilamellar, incrusting sheet. It is generally orbicular, 
suborbicular, or flabelliform. 
Genotype.- — Berenicea prominens Lamouroux, 1821. 
Range. — Ordovician-Recent. 
Like Proboscina the ancient name Berenicea is retained in a zoarial sense to 
include those species of lamellar incrusting Cyclostomata, showing no ovicell. As 
Fig. 216. — Forma Berenicea Lamouroux, 1821. 
A-C. Two species of Berenicea showing the terminology employed in this and similar Cyclos- 
tomata. 
noted on subsequent pages, species of Berenicea preserving ovicell are referred to 
several distinct genera and indeed families. A large number of species have the 
ovicell of Plagioecia , but others belong to Oncousoecia , Mecynoecia , Microecia , 
Diaperoecia , and Diplosolen. 
BERENICEA PALMULA, new species. 
Plate 105, figs. 5, 6. 
Description . — The zoarium incrusts shells and is formed of flabelliform , bifur- 
cated, short, pluriserial branches. The zone of growth is much reduced. The tubes 
are little distinct, oval, smooth, arranged in quincunx. The peristomie is short, 
