DESMEPORA. 
117 
An irregularly cross -shaped zoariiim, showing the lower or obverse 
face and stem. Chalk. South - east of England. Toulmin 
Smith Coll. 
A cross-shaped zoarium, showing both faces and side. Chalk. South- 
east of England. Toulmin Smith Coll. 
A branch (on flint) . Upper Chalk. Burham, Kent. Presented by 
Hon. R. Marsham, 1878. 
Branches in chalk, with Petalopora eostata (d’Orb.) and Petalopora 
pulchella (Rora.). Chalk. Dover. Bowerbank Coll. 
A five-armed specimen. Chalk. Dover. Old Coll. 
A branch (on flint). Middle Chalk— zone of Micr aster cortestn- 
dinariiun. Chatham. Gamble Coll. 
A single branch (on flint). Middle Chalk — zone of Micraster eor- 
testudinarium. Chatham. Gamble Coll. 
A five-rayed zoaiium. Chalk — zone of Holaster planus (^Micraster 
hrevipoms'). Dover. Presented by William Hill, Esq., F.G.S. 
A zoarium in chalk, with Homceosolen gamblei, Greg. Chalk. Dover. 
? Wetherell Coll. 
Several branches in chalk, with Clausa glohulosa (d’Orb.). Upper 
Chalk. Dover. Bowerbank Coll. 
Three broken zoaria. Upper Chalk. Dover. Bowerbank Coll. 
A five-armed zoarium. Chalk. ? Sussex. Dixon or Bowerbank Coll. 
Several branches in chalk with Nodelea durobrivensis, Greg. Chalk. 
South-east of England. Toulmin Smith Coll. 
Two small zoaria. Chalk. South-east of England. Toulmin 
Smith Coll. 
A zoarium and broken branches. Chalk. Loc. ? Toulmin Smith 
Coll. 
Three specimens. Upper Chalk. Beachy Head. Presented by 
Dr. J. W. Gregory. 
UNllEPRESENTED SPECIES, 
reussi, Gregory, 1909. 
Syn. Besmepora reussi, Gregory, 1909. New Cret. Bry. : Geol. Mag; dec. 5, 
vol. vi. p. 63. 
,, semicglindrica, von Reuss, 1872. Bry. unt. Plan. : Palseont. 
vol. XX. pt. i. p. 123, pi. XXX. figs. 6, 7, non 
fig. 8. 
,, (Semicgtis) fenestrata, Marsson, 1887. Bry. Riigen : Pal. 
Abb. vol. iv. p. 38. 
Diagnosis.— The branches are large, thick, and irregular, and form a short, 
stout, bushy zoarium. The peristomal groups project as large blunt knobs ■ 
they are usually elliptical or subcircular, and each contains up to thirty to fifty 
apertures. The groups are scattered irregularly over the stems, occurring on 
the front as well as on the sides. General surface ornamented with long ribs 
separating the cancelli. 
D. 3071. 
D. 3074. 
D. 3081. 
D. 3085. 
D. 3111. 
D. 4251. 
D. 4352. 
D. 4384. 
D. 4490. 
D. 4570. 
D. 4571. 
D. 4577. 
D. 4578. 
D. 4579. 
D. 7286. 
D. 7287. 
