80 
BEEENICEA. 
peristomes are more distant and the zooecia flahelliform ; X 10 dia. 
Upper Chalk : Charlton. Presented by G. C. Crick, Esq. D. 3000. 
Fig. 3. Part of a zoarium showing a broken gonocyst, 
with three zooecia opening into it ; X 15 dia. Maastrichter Kreide : 
Maastricht. Tan Breda Coll. D. 3574. 
Fig. 3. — Jiereuicea phltjcffruosa, Rss. ; part of a zoarium with a broken gonocyst, 
X 15 dia. Maastrichter Kreide : Maastricht. Van Breda Coll. D. 3574. 
Affinities. 
Berenicea phhfctftnosa was founded hy von Reuss for a specimen 
from the Tiironian of Gosau. Its nearest ally is probably 
B. gracilin, var. tenuis, from which it differs hy the zooecia and 
apertures being larger in proportion to the length of the zooecia. 
The zoarium is thicker, and the zooecia mainly immersed, apertures 
standing out above the surface like small scattered heads. The 
species also presents points of resemblance to B. regularis, var. 
gamhlei, owing to the large diameter of the zooecia ; but the 
zoarium is flatter, and the peristomes are less elevated and more 
regular in arrangement. The zooecial diameter is the same as in 
B. regularis, var. amhita ; but there is no bare selvage, and the 
peristomes are larger. 
LIST OF SPECIMENS. 
British. 
D. 3000. A zoarium encrusting a fragment of Echinocorys scutatus. Upper 
Chalk. Charlton. Presented by G. C. Crick, Esq. Figd. 
PI. VI. Fig. 4. 
D. 3249. A small zoarium encrusting a fragment of Echinocorys, with 
Stomatopora gracilis (Edw.). Upper Chalk : Micraster 
coranguinum zone. Quidhampton, near Salisbury. Presented by 
Dr. H. P. Blackmore. 
D. 3902. A thin zoarinm with irregular outline, encrusting an echinid 
fragment (on slide) . Middle Chalk. Chatham. Gamble Coll. 
D. 3906. A zoarium with irregularly elliptical form, encrusting an echinid 
plate (on slide) . Middle Chalk. Chatham. Gamble Coll. 
