108 
BEEENICEA. 
DlSTEIBIJTIOir. 
England : 
Middle Chalk : Chatham. 
Foreign, 
Cenomanian : Saxony, in Lower Planer. 
Figijees. 
PL VI. Fig. 10. A zoarium encrusting an echinid fragment; 
X 10 dia. (on slide). Middle Chalk: Chatham. Gamble Coll. 
D. 3870. 
Affinities. 
This ‘ species ’ was first figured by von Reuss, who identified 
it as the Idmonea virgula of d’Orbigny. It is an illustration of 
the great divergence of view in the aiTangement of these Cyclo- 
stomatous Pryozoa, that von Reuss declares that his Saxon specimens 
“ stimmen vdllig ” with d’Orbigny’s species; although the figures 
given by the two authors should probably be assigned to different 
families. The Idmonea virgula of d’Orbigny is a true Idmonid, 
having transverse, alternate, or subalternate rows of zooecia, with 
the peristomes well spaced. Yon Reuss’s R. virgula has no such 
Idmoniiform arrangement ; the peristomes are crowded, and occur 
quincuncially along oblique, intersecting lines. It seems, there- 
fore, necessary to separate the two forms generically, and to 
propose a new specific name for the Berenicea. The species had 
been in MS. named after von Reuss, but as M. Canu has recently 
attached the name of that palaeontologist to a Berenicea another 
name is necessary for this species. I therefore propose to call it 
B. canui. 
LIST OF SPECIMENS. ‘ 
D. 3870. A two-lobed zoarium, encrusting a plate of Echinoeorys (on slide). 
Middle Chalk. Chatham. Gamble Coll. Figd. PI. VI. Fig. 10. 
D. 3929. A circular zoarium, encrusting a fragment of Echinoeorys (on slide). 
Middle Chalk. Chatham. Gamble Coll. 
12. Berenicea spissa, nov. 
Diagnosis. 
Zoarium large and thick ; irregular in outline ; 
several radial groups. 
composed of 
