EEPTOMULTISPAESA. 
123 
D. 3943. 
D. 3945. 
D. 4246. 
D. 4247. 
D. 3930. 
D. 3931. 
D. 3879. 
D. 2692. 
D. 3888. 
D. 2993. 
D. 3933. 
D. 3934. 
D. 3947. 
D. 2992. 
D. 3031. 
A regular trilaminar zoarium encrusting a fragment of Echinocorys, 
sp. (on slide). Middle Chalk. Chatham. Gamble Coll. 
A thin zoarium encrusting a fragment of Echinocorys, sp. (on slide). 
Middle Chalk. Chatham. Gamble Coll. 
A small zoarium encrusting a fragment of Micraster, sp. (on slide) . 
Middle Chalk. Chatham. Gamble Coll. 
A young zoarium on slide with ? Radiocavea. Middle Chalk. 
Chatham. Gamble Coll. 
A regularly convex zoarium (on slide). Middle Chalk. Chatham. 
Gamble Coll. 
A thick massive zoarium encrusting a fragment of Echinocorys, sp. 
(on slide). Middle Chalk. Chatham. Gamble Coll. 
A worn zoarium encrusting an echiuid fragment (on slide). Middle 
Chalk. Chatham. Gamble Coll. 
An irregular zoarium encrusting a fragment of Echinocorys, sp. (on 
slide). Middle Chalk. Chatham. Vine Coll. 
Encrusting a fragment of Inoceramus, sp., with Berenicea gracilis 
(Edw.), var. tenuis (Rss.), and Hippothoa, sp. Middle Chalk. 
Chatham. Gamble Coll. 
A young thick zoarium, in flint. Chalk. Loc. ? Old Coll. 
A young zoarium formed of four small zooecial groups, and in the 
Berenicoid stage (on slide). Middle Chalk. Chatham. Gamble 
Coll. 
A zoarium in the sub -Berenicoid stage, consisting of two super- 
imposed zooecial groups (on slide). Middle Chalk. Chatham. 
Gamble Coll. 
Two zoaria on slide, with three specimens of Berenicea papillosa 
(Rss.). Middle Chalk. Chatham. Gamble Coll. 
A zoarium, 50 mm. long by 45 mm. broad. Upper Chalk. Loc. ? 
Bowerbank Coll. 
Two irregular zoaria. Upper Chalk. Offham Pit, near Lewes. 
Capron Coll. 
6. Reptomultisparsa megalopora (Vine), 1885. 
Synonymy. 
Liastopora megalopora. Vine, 1885. Cambr. Greensd. : Proc. Yorks. Geol. Soc. 
vol. ix. p. 19, pi. ii.^flgs. 9, 9«-c. 
,, ,, Vine, 1889. Polyz. Greensd.: ihid. vol. xi. p. 269. 
Diagnosis. 
Zoarium beginning as thick discoid zooecial groups, which 
expand into broad sheets, or are piled into multilaminar 
masses. 
Zooecia short, stout, sub-erect ; mainly immersed in the zoarium, 
and visible only at the distal end. 
