ACTING POE A. 
11 
57,527. A zoarium similar to the last, attached to echiuid plate (on slide). 
Upper Chalk. Bromley, Kent. J. Simmons Coll. 
D. 4455. A small zoarium approximating to var. Jiabellata, attached to echinid 
plate (on slide). Upper Chalk — zone of Micraster coranguinum. 
Gravesend. 'Wetherell Coll. 
D. 3119. A zoarium with short radii, attached to echinid plate (on slide). 
Upper Chalk. England. Old Coll. 
D. 11,800. A large zoarium of var. gaudnji, attached to plates of Echinocorys 
sciitatm, Leske (on slide). Upper Chalk. Dover. J. S. Gardner Coll. 
D. 4457. A small zoarium of var. gaudryi^ attached to echinid plates (on slide). 
Upper Chalk — zone of Micraster coranguinum. South - east 
England. "Wetherell Coll. 
D. 467. A zoarium with Metnhranipora sp., on Micraster cortestudinarhim. 
Upper Chalk — zone of Micraster cortestudinarium. Chatham. 
Gamble Coll. 
D. 3097. A zoarium of var. gaudryi on a fragment of Echinocorys. Upper 
Chalk. Loc. ? Bowerbank Coll. 
Foreign. 
Var. disticha. 
D. 5141. A zoarium with ridges of the type of disticha, but quadriserial 
in places. It is attached to an indeterminable Cyclostomatous 
stem. i\[aa.strichter Kalk. ^Maastricht. Van Breda Coll. 
D. 5142. Three zoaria. One has some radii biserial in places ; but on these 
a third aperture occurs at intervals, and in the same specimen there 
are quadriserial to wedge-shaped groups of multiserial apertures. 
The other specimens have the long rays multiserial with apertures 
of the same size as those of A. stellata and diaclcma ; the specimens 
suggest that the disticha of Hagenow may be only a variety 
of diadema Avith narrow carinate radii. Maastrichter Kalk. 
^Maastricht. Yan Breda Coll. 
D. 3427. Four specimens of continent forms; one is 20mm. long by 10mm. 
across, and has three centres of growth. Maastrichter Kalk. 
Maastricht. Yan Breda Coll. One specimen is illustrated by 
Fig. 11, p. 9. 
D. 3455. Two zoaria growing along cylindrical stems ; ridges rather long 
and reaching nearly to the centre (on slide). Maastrichter Kalk. 
^Maastricht. Yan Breda Coll. 
D. 3456. A zoarium and a fragment with rather long ridges (on slide). 
Maastrichter Kalk. Maastricht. Yan Breda CoU. 
D. 3473. A worn zoarium of along variety, 9 mm. dia. by 4 mm. wide (on slide). 
Maastrichter Kalk. Maastricht. Yan Breda Coll. 
3. Actinopora complanata (Homer), 1840. 
Synonymy. 
Discopora radiata, Woodward, 1833. Geol. Norfolk, p. 46, pi. iv. fig. 3. 
JJefrancia complanata, 1840. Yerst. nordd. Kr. p. 19, pi. v. fig. 19. 
,, ,, d’Archiac, 1846. Cret. vers. Plat. Centr. : Mem. Soc. geol. 
France, ser. 2, vol. ii. p. 58. 
