CLAUSA. 
423 
D. 4078. 
D. 4172. 
D. 4173. 
D. 3106. 
D. 4115. 
D. 471. 
D. 4557. 
D. 4183. 
D. 4558. 
D. 468. 
D. 4559. 
D. 4660. 
D. 3057. 
56,355. 
D. 4560. 
D. 4561. 
D. 4049. 
D. 4562. 
D. 2729. 
D. 629. 
D. 360. 
D. 2629. 
50,457. 
A zoariiini of var. crassicaiuata with a thick irregular stem similar 
to the previous specimen. Middle Chalk. Chatham. G-amble Coll. 
A thick irregular zoarium of the var. crassicanlata. Middle Chalk. 
Chatham. Gamble Coll. 
A specimen of var. crassicatdata. Middle Chalk. Chatham. 
Gamble Coll. 
A branched zoarium of var. crassicanlata, with the peristomes in 
one part highly raised. Chalk. Loc. ? Bowerbaiik Coll. 
A branched zoarium of var. crassicanlata and two fragments cut to 
show transverse section. IMiddle Chalk. Chatham. Gamble Coll. 
A branched zoaiium of var. crassicanlata, showing longitudinal 
section. Middle Chalk. Chatham. Gamble Coll. 
A zoarium mostly imbedded in flint. Middle Chalk. Chatham. 
Presented by Wni. Gamble, Esq., 1889. 
Two zoaria in flints, var. crassicanlata. Middle Chalk. Chatham. 
Gamble Coll. 
Head of a zoarium, on flint, associated with various Cheilostomata. 
Middle Chalk. Chatham. Presented by Wm. Gamble, Esq., 1889. 
Two zoaria on flints ; the better preserved is a branched form of 
crassicanlata. Middle Chalk. Chatham. Gamble Coll. 
A cylindrical, rather thin, stalked form of crassicanlata. Middle 
Chalk. Chatham. Gamble Coll. The specimen has one zooecium 
with a free penstome l-5mm. long. Figd. PI. XV’’!!. Fig. 5. 
Two zoaria in flint, var. crassicanlata. Middle Chalk. Chatham. 
Presented by '\Vm. Gamble, Esq., 1889. 
An iiTegular specimen of var. crassicanlata. Middle Chalk. Chatham. 
Presented by "Wm. Gamble, Esq., 1889. 
A head of a zoarium on flint. Upper Chalk. Croydon. J. Simmons 
Coll. 
A zoarium of var. crassicanlata. Middle Chalk. ‘ Ludston ’ 
(PLudsdown, west -south -west of Eochester). Bowerbank Coll. 
A thin, longitudinal section, cut from a fragment of the previous 
specimen. Figd. Xo. fiO, p. 422. 
Three zoaria of var. crassicanlata (on slide). Middle Chalk. 
Chatham. Gamble Coll. 
The head of a zoarium (on slide). Middle Chalk. Chatham. Vine 
Coll. Identifled by Vine as Jlelicerititcs dollfasi. 
The heads of two zoaria (on slide). Middle Chalk. Chatham. Vine 
Coll. 
Part of a branched zoarium of var. crassicanlata (on shde). Middle 
Chalk. Chatham. Vine Coll., Xo. 1U6. Identified by Vine 
as Jleliceritites, sp. 
Three specimens (on slide) ; two .show internal structure. Middle 
Chalk. Chatham. Gamble Coll. 
A zoarium of var. tennicanlata, but with a stouter, less regular stem 
than the typical form of that variety. Upper Chalk. Salisbury. 
Vine Coll.', Xo. 82. 
A fragment of var. crassicanlata. Upper Chalk. Archcliff Cave, 
Dover. Morris Coll. 
