120 
EEPTOMULTISPA ESA . 
D. 2885. A very young zoarium, 2-5 mra. long (on slide). Chalk Detritus. 
Charing. T. K. Jones Coll. 
D. 3030. A nodular compound zoarium. Upper Chalk. Guildford. Capron 
Coll. Figd. PI. VII. Figs. Za-b. 
? D. 2963. A specimen labelled by Vine D. fecunda. Upper Greensand. Cam- 
bridge. Jesson CoU. 
3. E-eptonmltisparsa sowerbyi (Lonsdale), 1850. 
Synonymy. 
Liasiopora sowerbyi, Lonsdale, 1850. Dixon, Geol. Suss., p. 271, pi. xviii. a, 
figs. 2, 2a. 
,, ,, Vine, 1885. 4th Rep. Brit. Assoc. 1884, p. 168. 
Diagnosis. 
Zoarium a thick, flat sheet, formed of numerous superposed 
Berenicoid discs. Apertures an’anged suhradially. The 
zooecial groups are separated by lines of crowded apertures 
or by solid ridges. Zooecia stout, short, crowded. Peri- 
stomes low. 
Dimensions. 
D. 2991. 
Zoarium 
• •• 
... 25x27 
Length of mature zooecia 
I'O 
Diameter of mature zooecia 
• •• 
•3 
Diameter of aperture 
... 
... -1--2 
Disteibijtion. 
Chalk : Maidstone, Sussex. 
PiGIJEES. . 
PI. VII. Pig. 2. Part of a typical specimen, x 7 dia. Upper (?) 
Chalk : Maidstone. Old Coll. D. 2991. 
Affinities. 
This ‘species’ is closely allied to R. covgesta (Ess.), from which it 
differs by the greater stoutness of the zooecia, which are more 
crowded : the apertures are not only closer together, hut suh- 
radially an’anged. By the last character this species presents an 
approach to Cellulipora, as has been remarked by Professor Seeley.^ 
^ H. G. Seeley. Foss. Up. Gr. Hunst. : Ann. Mag. Nat. Hist. ser. 3, 
Tol. xvii. (1866), p. 181. 
