HOM(EOSOLEy. 
83 
D. 3952. 
Five zoaria and fragments; one is 11mm. long and 1-5 mm. thick. 
Middle Chalk — zone of Micraster cortestudinarium . Chatham. 
Gamble Coll. Purchased 1898. 
D. 3964. 
Three loose isolated branches. Middle Chalk— zone of Micraster 
cortestudinariiim. Chatham. Labelled Truncatula carinata. 
Gamble Coll. 
D. 4097. 
The base of a young Bomocosolen^ probably B.. ramulosus. The 
fragment is 5 mm. high and rises from a stolon-like base of which 
4 mm. remain. The bases of the branches form a funnel-shaped 
zoarium. Both surfaces are exposed. Middle Chalk — zone of 
Micraster cortestudinarium. Chatham. Gamble Coll. Purchased 
1898. 
D. 4349. 
Three fragments of zoaria. Middle Chalk — zone of Micraster cor- 
testudinarium. Chatham. Gamble Coll. 
D. 4366. 
A young zoarium in the Supercytis digitata stage ; the base is a 
horizontal stem of which 2*5 mm. is left; the height of the 
specimen is 5 mm. and the greatest width 7 mm. Middle Chalk 
— zone of Micraster cortestudinarium. Chatham. Gamble Coll. 
D. 4379. 
The specimen is labelled Supercytis digitata, Gamble. 
A large, well-preserved zoarium ; the fine apertures of the young zooecia 
are abundant in the lower branches, but scarce in the distal ends 
of the branches. Lower Chalk — zone of Micraster hreviporus. 
Dover. Presented by William Hill, Esq., F.G.S., December 15, 
1897. 
D. 4382. 
A small zoarium. Lower Chalk — zone of Micraster hreviporus. 
Dover. Presented by William Hill, Esq., F.G.S., December 15, 
1897. 
D. 4383. 
Part of a larger zoarium, showing the reverse surface. Lower Chalk 
— zone of Micraster hreviporus. Dover. Presented by William 
D. 4402. 
Hill, Esq., F.G.S., December 15, 1897. 
A young frond having thick basal branches, sho\nng the base and 
obverse surface ; frond 11 mm. by 9 mm. ; branches I'o mm. thick. 
Chalk. Loc.? OldCoU. 
D. 4407. 
Fragment of a frond about 20 mm. square ; it exposes the reverse 
surface, which is strongly ridged ; a small part of the obverse 
surface has been exposed. Chalk. Offham’s Pit, Lewes. 
D. 4404. 
CaprOn Coll. 
The typical form of B. ramulosus, with elliptical apertures and pores 
in the middle of the branches. Upper Chalk. Bromley, Kent. 
Toulmin Smith Coll. 
D. 4405. 
A young broken zoarium, showing the flamboyant branching. Chalk. 
St. Catherine’s Hill Pit, near Guildford. H. Capron Coll. 
D. 4408. 
An irregular zoarium, with the typical ramulosus branching of the 
crowded variety, showing obverse surface. Upper Chalk — zone 
of Mierraster coranguinum. Charlton, Kent. J. Simmons Coll. 
1870. 
D. 4410. 
D. 4414. 
Fragment from Chalk. Dover. Old Coll. 
An irregular zoarium. Chalk. Dover. Bowerbank Coll. 
