PfiOBOSCINA. 
47 
D. 440. 
D. 2686. 
D. 986. 
D. 3834. 
? D. 977. 
D. 984. 
D. 439. 
D. 978. 
D. 3t49. 
D. 8847. 
D. 3836. 
D. 3848. 
D. 365. 
D. 379. 
D. 3859. 
D. 5153. 
D. 3835. 
D. 3850. 
?D. 2624. 
D. 3858. 
A regular zoarium on echinid fragment. Middle Chalk. Chatham. 
Gamble Coll. Figd. PI. III. Figs. 9a, h. 
A zoarium, part of which is in the echinorum stage, with two broken 
gonocysts ; it is encrusting an echinid fragment with Berenicea, sp. 
^liddle Chalk. Chatham. Vine Coll. Figd. PI. III. Fig. 10. 
A zoarium with gonocysts and the apertures locally quincuncial ; 
encrusting an echinid fragment. Middle Chalk. Chatham. Vine 
Coll. The type of Reptotubigera ramosa, var. irregularis^ Vine, 
1893: Eep. Brit. Assoc. 1892 (1893), p. 308. Figd. PI. IV. 
Fig. 1. 
Two zoaria on a sponge fragment, with Stomatopora gracilis (Edw.) 
Berenicea papillosa {^9,%.). Middle Chalk. Chatham. Gamble 
CoU. 
On echinid fragment (on slide). Middle Chalk. Chatham. Vine 
Coll. The type of P. cornucopicc^ var. eximia, Vine : Hep. Brit. 
Assoc. 1892 (1893), p. 307, I^o. 6. A very young form, possibly 
in the echinorum stage. 
On echinid fragment (on slide). Middle Chalk. Chatham. Vine 
Coll. Eecorded as Reptotubigera ramosa, Vine, 1893 : ibid. 
p. 308, No. 10. 
An irregular zoarium, encrusting echinid fragment (on slide). Middle 
Chalk. Chatham. Gamble Coll. 
On echinid fragment (on slide). Middle Chalk. Chatham. Vine 
Coll., specimen No. 5. Vine, 1893: op. cit. p. 307. 
A zoarium with short, wide branches (on slide). Middle Chalk. 
Chatham. Gamble Coll. 
A typical zoarium, encrusting a fragment of (on slide). 
Middle Chalk. Chatham. Gamble Coll. 
A typical form encrusting a fragment of Echinocorys (on slide). 
Middle Chalk. Chatham. Gamble Coll. 
An irregular zoarium with gonocyst, encrusting echinid plate (on 
slide). Middle Chalk. Chatham. Gamble Coll. 
A broken zoarium, encrusting fragment of Echinocorys (on slide). 
Middle Chalk. Chatham. Gamble Coll. 
Encrusting an echinid fragment (on slide). Middle Chalk. Chatham. 
Gamble Coll. 
A zoarium with long branches, encrusting a fragment of Echinocorys 
(on slide). Middle Chalk. Chatham. Gamble Coll. 
A young zoarium with regular branches, encrusting echinid fragment. 
Middle Chalk. Chatham. Gamble Coll. 
A zoarium with long, regular, narrow branches, on a fragment of 
Echinocorys [on Middle Chalk. Chatham. Gamble Coll. 
A zoarium with the typical triradiate, flabellate form, on an 
Inoceramus fragment (on slide). Middle Chalk. Chatham. 
Gamble Coll. 
An indeterminable zoarium identified by Vine as Proboscina cornu- 
copice, var. eximia. Middle Chalk. Chatham. Vine Coll. 
A series of zoaria with gonocysts, encrusting Echinocorys scutatus. 
Middle Chalk. Chatham. Gamble Coll. 
