82 
oscuLii’oiaD.i:. 
D. 669. 
D. 670. 
D. 671. 
D. 678. 
D. 679. 
D. 2666. 
D. 2748. 
D. 2750. 
D. 3052. 
D. 3053. 
ID. 3054. 
?D. 3055. 
D. 3115. 
?D. 3950. 
Four branches showing obverse and reverse faces (on slide). Middle 
Chalk — zone of Micr aster cor test udinarium. Chatham. Vine 
Coll., No. 73 a. 
Two fragments showing obverse and reverse (on slide). Middle Chalk — 
zone of Micr aster cor test ndinarium. Chatham. Vine Coll., No. 73. 
Two branches showing obverse and reverse faces (on slide). Middle 
Chalk — zone of Micraster cortestudinarimn. Chatham. Vine 
Coll., No. 72. 
Two long, thin, terminal branches with distant and alternate sub- 
branches (on slide). One is 8 mm. long and has the bases of two 
sub-branches on each side. Middle Chalk — zone of Min-aster 
cortestudxnarxnm. Chatham. Vine Coll., No. 77. Recorded .as 
Trwxcatnla alternata. 
A fragment with short, sharp sub-branches (on slide), ^fiddle Chalk — 
loiaeoi Micraster cox'testHdinarium. Vine Coll., No. 76. Recorded 
as Tx'uncatula acxileata. 
Two fragments (on slide) ; one shows the obverse and the other the 
reverse surfaces. Middle Chalk — zone of Micraster coxtestu- 
ditiarimn. Chatham. Gamble Coll., No. 52. Purchased 1898. 
A young asymmetrical base and a fragment with the typical branching 
(on slide), with a specimen of H. gamblei. Middle Chalk — zone 
of Micraster cortestxtdixiariuw. Chatham. Vine Coll. 
A cup-shaped base in the form of Sitpercytis digitata ; it has the 
broken bases of nine branches on its rim (on slide). Middle Chalk — 
zone of Micraster cortestudinarimn . Chatham. Vine Coll. 
A large zoarium and a fragment of another. The zoaria have 
flamboyant branching. They show mainly the reverse Surface, but 
part of the obverse surface of one has been exposed. The l)asal 
stem is 3 mm. in dia. ; the frond of the same specimen is 36 mm. 
wdde and 25 mm. high. Chalk. Loc. ? Old Coll. 
A young zoarium with a broad base, on flint, with Nodelea duro- 
brivensis, Greg., and Onychocella sp. Middle Chalk — zone of 
Micraster cortestudinarimn. Chatham. Presented by 'William 
Gamble, Esq., 1889. 
Base and part of a young zoarium, mostly embedded in flint. Middle 
Chalk — zone of Micraster cortestudinarimn. Near Chatham. 
Presented by W. Gamble, Esq., January, 1889. (With 
Membranipora.) 
A branch partly embedded in flint. Middle Chalk — zone of Micraster 
cortestudinarimn. Chatham. Presented by William Gamble, Esq., 
January, 1889. 
Fragments of three zoaria ; one is 15 mm. high and has crowded 
branches. Upper Chalk. Gravesend. Old Coll. 
Two zoaria embedded in flint ; they show the bases and the proximal 
ends of the branches. The specimens are too fragmentary for 
certain specific determination, but their agreement with D. 4366 
renders it probable that they are H. ramulosus. Middle Chalk — 
zone of Micraster cortestudinarimn. Chatham. Gamble Coll. 
