ON CRETACEOUS POLYZOA. 381 
Cellepora hippocrepis,' Goldf. Petr. p. 26, pl. ix. fig. 3. Membrani- 
pora bidens, Busk ; and Reuss. Membranipora Rossellii, Manzoni. 
—Micropora hippocrepis,! Waters (p. 264). 
Cellepora marginopora,! Reuss, Foss. Polyp. Wien. Tert., p. 88, pl. 
x. fig. 23.  Reptescharellina prolifera, Gabb and Horn (Cret. 
N. Amer.).—Schizoporella marginopora,! Waters {p. 274). 2 
Of the Cyclostomatous? group we have the following :— 
Tubigera disticha, d’Orb. Pal. Fr. p. 723, pl. 746, figs. 2-6. Idinonea 
disticha, Hag. Bryoz. Maastr. p. 30, pl. ii. fig. 8—Idmonea 
bifrons, Waters (p. 685). 
Ceriopora verticillata, Goldf. Petr. Germ. p. 36, pl. 11, fig. 1. 
Sptropora antiqua, d’Orb. Pal. Fr. p. 710, pl. 615, figs. 10-18, 
and pl. 745, figs. 15-19. S. neocomiensis, d’Orb. p. 708, pl. 784, 
figs. 1-2. S$. Calamus, Gabb and Horn (N. American Cre- 
taceous).—Lntalophora verticillata, Waters (p. 685). 
Entalophora raripora, d’Orb. Pal. Franc., Terr. Crét. p. 787, pl. 621, 
figs. 1-3.—Entulophora raripora, Waters (p. 686). 
(See also Mr. Waters’s long list of synonyms.) 
Entalophora neocomiensis, d’Orb. Pal. Fr. p. 782, p. 616, figs. 15-18.— 
LEintalophora neocomiensis, Waters (p. 686). 
(See also list of synonyms given by Mr. Waters.) 
Apseudesia clypeata, Lamx. Haime, Bryoz. Form. Jur. p. 202, pl. 7, fig. 7. 
—Discotubigera clypeata, Waters (p. 690). 
Pavotubigera flabellata, d’Orb. Pal. Fr. p. 767, pl. 752, figs. 4-8.— 
Pavotubigera flabellata, Waters (p. 691). 
Supercytis digitata, d’Orb. Pal. Fr. p. 1061, pl. 798, figs. 6-9.—Super- 
cytis ? digitata, Waters (p. 692). 
Domopora cochloidea, d’Orb. Pal. Fr. p. 990, pl. 781, figs. 5-7.— 
Lichenopora cochloidea, Waters (p. 695). 
Tecticavea boletiformis, d’Orb. (non Rss.), Pal. Fr. p. 991, pl. 781, figs. 
8-12.—Lichenopora boletiformis, Waters (p. 695). 
Bimulticavea variabilis, d’Orb. Pal. Fr. p. 983, pl. 779, figs. 9-13,— 
Lichenopora variabilis, Waters (p. 696). 
Since my former reports on Fossil Polyzoa I have had placed in my 
hands, for study and description, some fine collections of Polyzoa from 
several Cretaceous horizons. Lists of Polyzoa, however, are rarely given 
by authors when tabulating the ordinary fauna.of the different zones of 
the Chalk ; and I am obliged to fall back on the general lists furnished by 
Professor Morris and Mr. Etheridge, when dealing with species outside 
my own special work. 
In the first edition of his admirable ‘ Catalogue of British Fossils 
in 1845, Professor Morris dealt with Cretaceous and all other Polyzoa in 
accordance with the classificatory notions of that time; but in the 1854 
edition he followed, to some extent, the leading of d’Orbigny. Little, in 
the way of lists, has been added to our knowledge of really new 
? Quart. Journ. Geol. Soc. vol. xxxviii. pp. 257-276. 
? Ibid. vol. xl. pp. 674-696. 
