164 
vine: nutes on britlsh eocene polvzoa. 
Horizon : Barton beds ; Wliiteclift'e Bay ; Bracklesliain ; Stub- 
bingxlon. 
This seems to be the most abundant form of all the Eocene 
Polyzoa, as I have examples from all the above localities. In some 
of the masses of Bracklesham Clay, in the soaking of the mass, at 
least a dozen specimens may be obtained in very perfect condition. 
The "Whitecliffe Bay forms are much better preserved. 
11. Gellepora sp. (pumicosa ?) (Geol. Mag. vol. iii., p. 4. 
Among Mr. WetherelFs collection Mr. Busk found " a very 
minute Gellepora, resembling some of the minute globular specimens 
of C. pumicosa!' 
Horizon : London Clay, Higligate. 
Family Selanarid^, Busk, 1853. 
= Fam. Asterodiscina, Lonsd. Dixon's Geol. Sus. 
11. LUNULITES URCEOLATA, Lauik. 
1816. L. urceolata, Lanik. Animx. Sans Vert. t. ii., p. 195. 
1836. „ „ M. Ed., t. ii., p. 300. 
1850. L. urceolata, ? Lonsd. Dix. GeoL Sus., p. 159, pi. i. f. 8. 
Not GoLDFUSS, nor Lamouroux. 
Zoariam obtusely conical. Zocecia in parallel rows, easily sep- 
arated; form irregularly hexagonal or imperfectly oval; surface open, 
margin sharp, interior rounded, puctured by a few minute foramina; 
distal extremity slightly overlying, walls between the rows smooth. 
Thiclmess of Zoarium slightly exceeding the depth of the Zooscia. 
Vibraculu (= Intermediate chambers, Lonsd.) in linear series, lozenge 
shaped, and variable in size. Concave surface ribbed, foraminated. 
Horizon : Barton, and Bracklesham beds. Isle of Wight. 
]\Iy Barton beds examples are mere fragments, but the vibra- 
cular cells are distinct and characteristic. 
Sub-Order Cyclostomata, Busk. 
Fragments of species belonging to this Sub-Order are very rare, 
and sometimes ill preserved, but they form, nevertheless, a very pretty 
group of Eocene Polyzoa. 
12. Crisu eburnea ? 
1871. Crisia ? Phillips' Geol. of Oxford and Valley of the Thames. 
